Dendritic Cell Sarcoma, Follicular
Dendritic Cell Sarcoma, Interdigitating
Sarcoma, Clear Cell
Histiocytic Sarcoma
Langerhans Cell Sarcoma
Dendritic Cells, Follicular
Sarcoma
Dendritic Cells
Sarcoma, Small Cell
Cell Transdifferentiation
Sarcoma, Synovial
Immunohistochemistry
Soft Tissue Neoplasms
Sarcoma, Ewing
Sarcoma, Experimental
Sarcoma, Kaposi
Avian Sarcoma Viruses
Sarcoma 180
Oncogene Proteins, Fusion
Nephroma, Mesoblastic
Lymphoma, Non-Hodgkin
Encyclopedias as Topic
DNA Repair-Deficiency Disorders
Poly(ADP-ribose) Polymerases
BRCA1 Protein
Podoplanin (D2-40) is a novel marker for follicular dendritic cell tumors. (1/18)
Podoplanin, recognized by monoclonal antibody D2-40, may be a useful marker for follicular dendritic cell (FDC) tumors. Paraffin sections of 125 dendritic cell, histiocytic, and spindle cell lesions were studied, including 11 FDC tumors, 5 interdigitating dendritic cell tumors, 10 histiocytic sarcomas, 5 Langerhans cell histiocytosis, 5 sinus histiocytosis with massive lymphadenopathy, 5 inflammatory pseudotumors of lymph node or spleen, 9 nodal Kaposi sarcomas, 6 inflammatory myofibroblastic tumors (IMTs), 29 gastrointestinal stromal tumors (GISTs), and 10 cases each of malignant peripheral nerve sheath tumor, leiomyosarcoma, monophasic synovial sarcoma (SS), and solitary fibrous tumor. All FDC tumors and Kaposi sarcomas showed strong immunoreactivity for podoplanin (predominantly membranous). Podoplanin expression was only occasionally observed in the other tumor types, including 7 GISTs (24%), 2 IMTs (33%), and 3 SS (30%), and was generally weak and cytoplasmic. Reactivity for podoplanin was more common in spindle cell GISTs (5/13 [38%]) than in epithelioid or mixed-type GISTs (2/16 [13%]). Podoplanin is a highly sensitive marker for FDC tumors and may be useful to help confirm the diagnosis in conjunction with conventional FDC markers, particularly in the differential diagnosis of dendritic cell and histiocytic lesions. (+info)Clonally related follicular lymphomas and histiocytic/dendritic cell sarcomas: evidence for transdifferentiation of the follicular lymphoma clone. (2/18)
(+info)Follicular dendritic cell sarcoma of the neck: report of a case treated by surgical excision and COP plus (PEG)-liposomal doxorubicin. (3/18)
(+info)Follicular dendritic cell sarcoma of inguinal lymph node--a case report. (4/18)
Follicular dendritic cell sarcomas (FDCS) are rare neoplasms that involve lymph nodes or extranodal sites. They show varied histological features and thus can be mistaken for carcinoma or sarcoma. Correct identification is important for further management. A 43-year-old Indian female presented with a three-month history of progressive swelling at the right inguinal region. It was excised completely and was reported as lymph node with metastatic poorly differentiated carcinoma based on Haematoxylin and eosin (H&E) stain findings. Computerized tomography (CT) scans of thorax, abdomen and pelvis were normal and did not reveal a primary site. Following this, the case was referred to one of the authors. The slides were reviewed and a variety of immunocytochemical markers were done. The tumour cells were negative for epithelial, melanocytic, neural, leucocyte and soft tissue tumour markers. They were immunopositive for CD21, CD35 and negative for CD68. Based on the immunocytochemical findings, a final diagnosis of FDCS was made. This case highlights the histological and immunophenotypical profile of a rare tumour which requires a high index of suspicion for diagnosis. (+info)Extranodal follicular dendritic cell sarcoma of the pharyngeal region: a potential diagnostic pitfall, with literature review. (5/18)
(+info)Follicular dendritic cell sarcoma of the abdomen: the imaging findings. (6/18)
(+info)Follicular dendritic cell sarcoma of the neck with an aggressive and fatal course. (7/18)
(+info)Follicular dendritic cell sarcoma of the tonsil. (8/18)
(+info)Dendritic cell sarcoma, follicular is a very rare type of cancer that affects the dendritic cells, which are a type of immune cell found in the body. Specifically, this type of sarcoma arises from follicular dendritic cells, which are found in the lymph nodes and other lymphoid organs. These cells play an important role in helping the immune system recognize and respond to foreign invaders such as viruses and bacteria.
Dendritic cell sarcoma, follicular typically presents as a mass or enlargement of a lymph node or other lymphoid organ. It can also spread (metastasize) to other parts of the body. The symptoms of this type of cancer may vary depending on the location and extent of the tumor, but they can include swelling of lymph nodes, fever, night sweats, weight loss, and fatigue.
The exact cause of dendritic cell sarcoma, follicular is not known, but it is thought to arise from genetic mutations that occur in the cells over time. Treatment for this type of cancer typically involves a combination of surgery, radiation therapy, and chemotherapy, depending on the stage and location of the tumor.
It's important to note that medical definitions can be complex and technical, and they should not be used as a substitute for professional medical advice. If you have any concerns about your health or symptoms, please consult with a qualified healthcare provider.
Dendritic cell sarcoma, interdigitating (IDCS) is a rare type of cancer that affects the dendritic cells, which are a type of immune cell found in the body. These cells play a crucial role in the immune system by helping to identify and destroy foreign substances and cancer cells.
Interdigitating dendritic cell sarcoma is a malignant tumor that develops from interdigitating dendritic cells, which are a specific type of dendritic cell found in lymph nodes and other lymphoid organs. These cells are named for their unique morphology, which features finger-like projections called dendrites that interdigitate with those of neighboring cells.
IDCS typically presents as a solid mass or nodule in the lymph node or other lymphoid tissue. It can also spread to other parts of the body, including the skin, soft tissues, and visceral organs. The symptoms of IDCS may vary depending on the location and extent of the tumor, but they can include swelling, pain, and decreased mobility in the affected area.
The exact cause of IDCS is not well understood, but it is thought to arise from genetic mutations that lead to uncontrolled cell growth and division. Treatment options for IDCS may include surgery, radiation therapy, chemotherapy, or a combination of these approaches. The prognosis for patients with IDCS varies depending on several factors, including the stage of the disease at diagnosis, the location and size of the tumor, and the patient's overall health.
Sarcoma, clear cell, is a rare type of cancer that arises from certain types of connective tissue in the body. It is called "clear cell" because the cancer cells have a clear appearance when viewed under a microscope due to the presence of lipids or glycogen within the cytoplasm.
Clear cell sarcoma can occur in various parts of the body, but it most commonly affects the soft tissues of the extremities, such as the legs and arms. It is an aggressive cancer that tends to spread to other parts of the body, including the lungs, lymph nodes, and bones.
Clear cell sarcoma typically occurs in young adults, with a median age at diagnosis of around 30 years old. The exact cause of this type of sarcoma is not known, but it has been linked to genetic mutations involving the EWSR1 gene. Treatment for clear cell sarcoma usually involves surgery to remove the tumor, followed by radiation therapy and/or chemotherapy to kill any remaining cancer cells. Despite treatment, the prognosis for patients with clear cell sarcoma is generally poor, with a five-year survival rate of around 50%.
Histiocytic sarcoma is a rare type of cancer that originates from histiocytes, which are cells that are part of the immune system and found in various tissues throughout the body. These cells normally function to help fight infection and remove foreign substances. In histiocytic sarcoma, there is an abnormal accumulation and proliferation of these cells, leading to the formation of tumors.
Histiocytic sarcoma can affect people of any age but is more commonly found in adults, with a slight male predominance. It can occur in various parts of the body, such as the lymph nodes, skin, soft tissues, and internal organs like the spleen, liver, and lungs. The exact cause of histiocytic sarcoma remains unknown, but it is not considered to be hereditary.
The symptoms of histiocytic sarcoma depend on the location and extent of the tumor(s). Common signs include swollen lymph nodes, fatigue, fever, weight loss, night sweats, and pain or discomfort in the affected area. Diagnosis typically involves a combination of imaging studies (like CT scans, PET scans, or MRI), biopsies, and laboratory tests to confirm the presence of histiocytic sarcoma and assess its extent.
Treatment for histiocytic sarcoma usually involves a multidisciplinary approach, including surgery, radiation therapy, and chemotherapy. The choice of treatment depends on several factors, such as the location and stage of the disease, the patient's overall health, and their personal preferences. Clinical trials may also be an option for some patients, allowing them to access new and experimental therapies.
Prognosis for histiocytic sarcoma is generally poor, with a five-year survival rate of approximately 15-30%. However, outcomes can vary significantly depending on individual factors, such as the patient's age, the extent of the disease at diagnosis, and the effectiveness of treatment. Continued research is necessary to improve our understanding of this rare cancer and develop more effective therapies for those affected.
Langerhans cell sarcoma is a very rare and aggressive type of cancer that affects a specific group of cells called Langerhans cells, which are part of the immune system. These cells are normally found in the skin and mucous membranes, where they help to fight infection. In Langerhans cell sarcoma, these cells become malignant (cancerous) and can multiply and spread to other parts of the body.
Langerhans cell sarcoma is distinct from a more common type of cancer called Langerhans cell histiocytosis, which is not considered a true cancer but rather a disorder of the immune system. The exact cause of Langerhans cell sarcoma is not known, but it is thought to arise from genetic mutations that occur in Langerhans cells.
Symptoms of Langerhans cell sarcoma can vary depending on the location and extent of the cancer. Common symptoms may include skin rashes or lesions, fever, fatigue, weight loss, and swollen lymph nodes. Treatment for Langerhans cell sarcoma typically involves a combination of surgery, chemotherapy, and radiation therapy. However, because this is such a rare and aggressive cancer, treatment options may vary depending on the individual case.
Follicular dendritic cells (FDCs) are a specialized type of dendritic cell that reside in the germinal centers of secondary lymphoid organs, such as the spleen, lymph nodes, and Peyer's patches. They play a critical role in the adaptive immune response by presenting antigens to B cells and helping to regulate their activation, differentiation, and survival.
FDCs are characterized by their extensive network of dendrites, which can trap and retain antigens on their surface for extended periods. They also express a variety of surface receptors that allow them to interact with other immune cells, including complement receptors, Fc receptors, and cytokine receptors.
FDCs are derived from mesenchymal stem cells and are distinct from classical dendritic cells, which are derived from hematopoietic stem cells. They are long-lived cells that can survive for months or even years in the body, making them important players in the maintenance of immune memory.
Overall, follicular dendritic cells play a critical role in the adaptive immune response by helping to regulate B cell activation and differentiation, and by contributing to the development of immune memory.
Sarcoma is a type of cancer that develops from certain types of connective tissue (such as muscle, fat, fibrous tissue, blood vessels, or nerves) found throughout the body. It can occur in any part of the body, but it most commonly occurs in the arms, legs, chest, and abdomen.
Sarcomas are classified into two main groups: bone sarcomas and soft tissue sarcomas. Bone sarcomas develop in the bones, while soft tissue sarcomas develop in the soft tissues of the body, such as muscles, tendons, ligaments, fat, blood vessels, and nerves.
Sarcomas can be further classified into many subtypes based on their specific characteristics, such as the type of tissue they originate from, their genetic makeup, and their appearance under a microscope. The different subtypes of sarcoma have varying symptoms, prognoses, and treatment options.
Overall, sarcomas are relatively rare cancers, accounting for less than 1% of all cancer diagnoses in the United States each year. However, they can be aggressive and may require intensive treatment, such as surgery, radiation therapy, and chemotherapy.
Dendritic cells (DCs) are a type of immune cell that play a critical role in the body's defense against infection and cancer. They are named for their dendrite-like projections, which they use to interact with and sample their environment. DCs are responsible for processing antigens (foreign substances that trigger an immune response) and presenting them to T cells, a type of white blood cell that plays a central role in the immune system's response to infection and cancer.
DCs can be found throughout the body, including in the skin, mucous membranes, and lymphoid organs. They are able to recognize and respond to a wide variety of antigens, including those from bacteria, viruses, fungi, and parasites. Once they have processed an antigen, DCs migrate to the lymph nodes, where they present the antigen to T cells. This interaction activates the T cells, which then go on to mount a targeted immune response against the invading pathogen or cancerous cells.
DCs are a diverse group of cells that can be divided into several subsets based on their surface markers and function. Some DCs, such as Langerhans cells and dermal DCs, are found in the skin and mucous membranes, where they serve as sentinels for invading pathogens. Other DCs, such as plasmacytoid DCs and conventional DCs, are found in the lymphoid organs, where they play a role in activating T cells and initiating an immune response.
Overall, dendritic cells are essential for the proper functioning of the immune system, and dysregulation of these cells has been implicated in a variety of diseases, including autoimmune disorders and cancer.
Small cell sarcoma is a very rare and aggressive type of cancer that affects the connective tissues in the body, such as muscles, tendons, bones, cartilage, and fat. It is called "small cell" because the cancer cells are small and appear round or oval in shape, with scant cytoplasm and finely granular chromatin.
Small cell sarcoma typically occurs in adults between the ages of 40 and 70, and it can develop in any part of the body. However, it is most commonly found in the extremities, trunk, and retroperitoneum. The exact cause of small cell sarcoma is not known, but it is thought to be associated with genetic mutations that occur during a person's lifetime.
Small cell sarcoma can be difficult to diagnose because it often does not cause any symptoms until it has advanced to an aggressive stage. When symptoms do occur, they may include pain, swelling, or a lump in the affected area. Diagnosis typically involves a biopsy of the tumor tissue, followed by imaging tests such as CT scans, MRI scans, or PET scans to determine the extent of the cancer.
Treatment for small cell sarcoma usually involves surgery to remove the tumor, followed by radiation therapy and/or chemotherapy to kill any remaining cancer cells. However, because small cell sarcoma is so rare and aggressive, treatment options may be limited, and the prognosis is often poor. Clinical trials of new treatments are also an option for some patients.
Cell transdifferentiation is a process in which one type of differentiated cell transforms into another type of differentiated cell, without going through the stage of pluripotent stem cells. This process involves a series of genetic and epigenetic changes that result in the activation of new genetic programs and repression of old ones, leading to the acquisition of a new cell identity.
Transdifferentiation is a rare event in nature, but it has been induced in the laboratory through various methods such as gene transfer, chemical treatment, or nuclear transplantation. This process has potential applications in regenerative medicine, tissue engineering, and disease modeling. However, it also raises ethical concerns related to the generation of chimeric organisms and the possibility of uncontrolled cell growth.
Synovial sarcoma is a rare type of cancer that typically develops in the soft tissues surrounding the joints, such as the synovial membrane, which lines the joint capsules. Despite its name, synovial sarcoma does not necessarily arise from the synovium. It is called so due to its resemblance to this tissue under a microscope.
This form of sarcoma primarily affects young adults and can be found in various parts of the body, but it most commonly occurs in the extremities, particularly near the knees. Synovial sarcoma is characterized by specific genetic changes that result in the formation of fusion proteins, which contribute to uncontrolled cell growth and tumor development.
There are two main subtypes of synovial sarcoma: monophasic and biphasic. Monophasic synovial sarcoma is composed of either spindle-shaped (spaghetti-like) cells or epithelioid (roundish) cells, while biphasic synovial sarcoma contains both types of cells. A third subtype, called poorly differentiated synovial sarcoma, has a more aggressive behavior and is composed of small round cells that do not resemble the typical spindle or epithelioid cells.
Treatment for synovial sarcoma usually involves surgical removal of the tumor, often followed by radiation therapy and/or chemotherapy to reduce the risk of recurrence and metastasis. The prognosis varies depending on factors such as the size and location of the tumor, the patient's age, and the presence of metastases at diagnosis.
Immunohistochemistry (IHC) is a technique used in pathology and laboratory medicine to identify specific proteins or antigens in tissue sections. It combines the principles of immunology and histology to detect the presence and location of these target molecules within cells and tissues. This technique utilizes antibodies that are specific to the protein or antigen of interest, which are then tagged with a detection system such as a chromogen or fluorophore. The stained tissue sections can be examined under a microscope, allowing for the visualization and analysis of the distribution and expression patterns of the target molecule in the context of the tissue architecture. Immunohistochemistry is widely used in diagnostic pathology to help identify various diseases, including cancer, infectious diseases, and immune-mediated disorders.
Soft tissue neoplasms refer to abnormal growths or tumors that develop in the soft tissues of the body. Soft tissues include muscles, tendons, ligaments, fascia, nerves, blood vessels, fat, and synovial membranes (the thin layer of cells that line joints and tendons). Neoplasms can be benign (non-cancerous) or malignant (cancerous), and their behavior and potential for spread depend on the specific type of neoplasm.
Benign soft tissue neoplasms are typically slow-growing, well-circumscribed, and rarely spread to other parts of the body. They can often be removed surgically with a low risk of recurrence. Examples of benign soft tissue neoplasms include lipomas (fat tumors), schwannomas (nerve sheath tumors), and hemangiomas (blood vessel tumors).
Malignant soft tissue neoplasms, on the other hand, can grow rapidly, invade surrounding tissues, and may metastasize (spread) to distant parts of the body. They are often more difficult to treat than benign neoplasms and require a multidisciplinary approach, including surgery, radiation therapy, and chemotherapy. Examples of malignant soft tissue neoplasms include sarcomas, such as rhabdomyosarcoma (arising from skeletal muscle), leiomyosarcoma (arising from smooth muscle), and angiosarcoma (arising from blood vessels).
It is important to note that soft tissue neoplasms can occur in any part of the body, and their diagnosis and treatment require a thorough evaluation by a healthcare professional with expertise in this area.
Ewing sarcoma is a type of cancer that originates in bones or the soft tissues surrounding them, such as muscles and tendons. It primarily affects children and adolescents, although it can occur in adults as well. The disease is characterized by small, round tumor cells that typically grow quickly and are prone to metastasize (spread) to other parts of the body, most commonly the lungs, bones, and bone marrow.
Ewing sarcoma is caused by a genetic abnormality, specifically a chromosomal translocation that results in the fusion of two genes, EWSR1 and FLI1. This gene fusion leads to the formation of an abnormal protein that disrupts normal cell growth and division processes, ultimately resulting in cancer.
Symptoms of Ewing sarcoma can vary depending on the location and size of the tumor but may include pain or swelling in the affected area, fever, fatigue, and weight loss. Diagnosis typically involves imaging studies such as X-rays, CT scans, or MRI scans to locate the tumor, followed by a biopsy to confirm the presence of cancer cells. Treatment may involve surgery, radiation therapy, chemotherapy, or a combination of these approaches, depending on the stage and location of the disease.
I'm sorry for any confusion, but "Sarcoma, Experimental" is not a recognized medical term or definition. Sarcomas are a type of cancer that develop in the body's connective tissues, such as bones, muscles, tendons, cartilage, and fat. There are many different types of sarcomas, classified based on the specific type of tissue they originate from.
Experimental, on the other hand, refers to something that is being tested or tried out for the first time, typically as part of a scientific experiment or clinical trial. In the context of cancer treatment, an experimental therapy might refer to a new drug, procedure, or device that is still being studied in clinical trials to determine its safety and effectiveness.
Therefore, "Sarcoma, Experimental" could potentially refer to a clinical trial or research study involving a new treatment for sarcoma, but it would not be a medical definition in and of itself. If you have any specific questions about sarcomas or experimental treatments, I would recommend consulting with a healthcare professional or medical researcher for more accurate information.
Kaposi sarcoma (KS) is a type of cancer that causes abnormal growths in the skin, lymph nodes, or other organs. It is caused by the Kaposi sarcoma-associated herpesvirus (KSHV), also known as human herpesvirus 8 (HHV8). There are several forms of KS, including:
1. Classic KS: This form primarily affects older men of Mediterranean, Middle Eastern, or Ashkenazi Jewish descent. It tends to progress slowly and mainly involves the skin.
2. Endemic KS: Found in parts of Africa, this form predominantly affects children and young adults, regardless of their HIV status.
3. Immunosuppression-associated KS: This form is more aggressive and occurs in people with weakened immune systems due to organ transplantation or other causes.
4. Epidemic KS (AIDS-related KS): This is the most common form of KS, seen primarily in people with HIV/AIDS. The widespread use of antiretroviral therapy (ART) has significantly reduced its incidence.
KS lesions can appear as red, purple, or brown spots on the skin and may also affect internal organs such as the lungs, lymph nodes, or gastrointestinal tract. Symptoms vary depending on the location of the lesions but often include fever, fatigue, weight loss, and swelling in the legs or abdomen. Treatment options depend on the extent and severity of the disease and may involve local therapies (e.g., radiation, topical treatments), systemic therapies (e.g., chemotherapy, immunotherapy), or a combination of these approaches.
Avian sarcoma viruses (ASVs) are a group of retroviruses that primarily infect birds and cause various types of tumors, particularly sarcomas. These viruses contain an oncogene, which is a gene that has the ability to transform normal cells into cancerous ones. The oncogene in ASVs is often derived from cellular genes called proto-oncogenes, which are normally involved in regulating cell growth and division.
ASVs can be divided into two main types: non-defective and defective. Non-defective ASVs contain a complete set of viral genes that allow them to replicate independently, while defective ASVs lack some of the necessary viral genes and require assistance from other viruses to replicate.
One well-known example of an avian sarcoma virus is the Rous sarcoma virus (RSV), which was first discovered in chickens by Peyton Rous in 1910. RSV causes a highly malignant form of sarcoma in chickens and has been extensively studied as a model system for cancer research. The oncogene in RSV is called v-src, which is derived from the normal cellular gene c-src.
Avian sarcoma viruses have contributed significantly to our understanding of the molecular mechanisms underlying cancer development and have provided valuable insights into the role of oncogenes in tumorigenesis.
I'm sorry for any confusion, but "Sarcoma 180" is not a recognized medical term or an official classification of sarcomas in humans. It appears to be a term used primarily in research involving mice. Sarcoma 180 is a transplantable tumor that was first isolated from a mouse and has been used as a model for cancer research, particularly in studies involving immunotherapy and cancer treatment.
In general, sarcomas are cancers that develop from connective tissues such as bones, muscles, tendons, cartilages, nerves, and blood vessels. They can be further classified into various subtypes based on the specific type of tissue they originate from and their genetic characteristics. If you have any concerns about a specific medical condition or term, I would recommend consulting with a healthcare professional for accurate information.
An oncogene protein fusion is a result of a genetic alteration in which parts of two different genes combine to create a hybrid gene that can contribute to the development of cancer. This fusion can lead to the production of an abnormal protein that promotes uncontrolled cell growth and division, ultimately resulting in a malignant tumor. Oncogene protein fusions are often caused by chromosomal rearrangements such as translocations, inversions, or deletions and are commonly found in various types of cancer, including leukemia and sarcoma. These genetic alterations can serve as potential targets for cancer diagnosis and therapy.
Mesoblastic Nephroma is a rare type of kidney tumor that typically occurs in infants and young children. It is usually diagnosed within the first year of life, with most cases occurring in the first three months.
The term "mesoblastic" refers to the origin of the tumor cells, which are thought to arise from the mesenchymal tissue, a type of connective tissue that gives rise to various structures during embryonic development.
Mesoblastic Nephroma is classified into two types: classic and cellular. The classic type is composed of fascicles of spindle-shaped cells with interspersed mature adipose tissue, while the cellular type is made up of sheets of closely packed cells that resemble embryonal rhabdomyosarcoma.
The tumor can be asymptomatic or may present with abdominal distension, palpable mass, hematuria, or hypertension. The diagnosis is usually made by imaging studies such as ultrasound, CT scan, or MRI, followed by a biopsy to confirm the histological type.
Treatment typically involves surgical resection of the tumor, and the prognosis is generally excellent, with a high cure rate. However, close follow-up is necessary to monitor for any signs of recurrence or metastasis.
Non-Hodgkin lymphoma (NHL) is a type of cancer that originates in the lymphatic system, which is part of the immune system. It involves the abnormal growth and proliferation of malignant lymphocytes (a type of white blood cell), leading to the formation of tumors in lymph nodes, spleen, bone marrow, or other organs. NHL can be further classified into various subtypes based on the specific type of lymphocyte involved and its characteristics.
The symptoms of Non-Hodgkin lymphoma may include:
* Painless swelling of lymph nodes in the neck, armpits, or groin
* Persistent fatigue
* Unexplained weight loss
* Fever
* Night sweats
* Itchy skin
The exact cause of Non-Hodgkin lymphoma is not well understood, but it has been associated with certain risk factors such as age (most common in people over 60), exposure to certain chemicals, immune system deficiencies, and infection with viruses like Epstein-Barr virus or HIV.
Treatment for Non-Hodgkin lymphoma depends on the stage and subtype of the disease, as well as the patient's overall health. Treatment options may include chemotherapy, radiation therapy, immunotherapy, targeted therapy, stem cell transplantation, or a combination of these approaches. Regular follow-up care is essential to monitor the progression of the disease and manage any potential long-term side effects of treatment.
An encyclopedia is a comprehensive reference work containing articles on various topics, usually arranged in alphabetical order. In the context of medicine, a medical encyclopedia is a collection of articles that provide information about a wide range of medical topics, including diseases and conditions, treatments, tests, procedures, and anatomy and physiology. Medical encyclopedias may be published in print or electronic formats and are often used as a starting point for researching medical topics. They can provide reliable and accurate information on medical subjects, making them useful resources for healthcare professionals, students, and patients alike. Some well-known examples of medical encyclopedias include the Merck Manual and the Stedman's Medical Dictionary.
DNA repair-deficiency disorders are a group of genetic conditions that result from mutations in genes responsible for the repair and maintenance of DNA. These disorders are characterized by increased sensitivity to environmental factors that can damage DNA, such as ultraviolet (UV) radiation, chemicals, and free radicals. As a result, individuals with these disorders have an increased risk of developing various types of cancer, neurological disorders, premature aging, and other health problems.
Examples of DNA repair-deficiency disorders include xeroderma pigmentosum, Cockayne syndrome, trichothiodystrophy, and Bloom syndrome. These conditions are typically inherited in an autosomal recessive manner, meaning that an individual must inherit two copies of the mutated gene (one from each parent) to develop the disorder.
Treatment for DNA repair-deficiency disorders is focused on managing symptoms and preventing complications. This may include avoiding exposure to UV radiation, using sunscreens and protective clothing, and undergoing regular cancer screenings. In some cases, medications or other therapies may be used to treat specific symptoms or complications of the disorder.
BRCA1 protein is a tumor suppressor protein that plays a crucial role in repairing damaged DNA and maintaining genomic stability. The BRCA1 gene provides instructions for making this protein. Mutations in the BRCA1 gene can lead to impaired function of the BRCA1 protein, significantly increasing the risk of developing breast, ovarian, and other types of cancer.
The BRCA1 protein forms complexes with several other proteins to participate in various cellular processes, such as:
1. DNA damage response and repair: BRCA1 helps recognize and repair double-strand DNA breaks through homologous recombination, a precise error-free repair mechanism.
2. Cell cycle checkpoints: BRCA1 is involved in regulating the G1/S and G2/M cell cycle checkpoints to ensure proper DNA replication and cell division.
3. Transcription regulation: BRCA1 can act as a transcriptional co-regulator, influencing the expression of genes involved in various cellular processes, including DNA repair and cell cycle control.
4. Apoptosis: In cases of severe or irreparable DNA damage, BRCA1 helps trigger programmed cell death (apoptosis) to eliminate potentially cancerous cells.
Individuals with inherited mutations in the BRCA1 gene have a higher risk of developing breast and ovarian cancers compared to the general population. Genetic testing for BRCA1 mutations is available for individuals with a family history of these cancers or those who meet specific clinical criteria. Identifying carriers of BRCA1 mutations allows for enhanced cancer surveillance, risk reduction strategies, and potential targeted therapies.
BRCA1 (BReast CAncer gene 1) is a tumor suppressor gene that produces a protein involved in repairing damaged DNA and maintaining genetic stability. Mutations in the BRCA1 gene are associated with an increased risk of developing hereditary breast and ovarian cancers. Inherited mutations in this gene account for about 5% of all breast cancers and about 10-15% of ovarian cancers. Women who have a mutation in the BRCA1 gene have a significantly higher risk of developing breast cancer and ovarian cancer compared to women without mutations. The protein produced by the BRCA1 gene also interacts with other proteins to regulate cell growth and division, so its disruption can lead to uncontrolled cell growth and tumor formation.
Follicular dendritic cell sarcoma
Idiopathic multicentric Castleman disease
Lymph node stromal cell
Unicentric Castleman disease
Epstein-Barr virus-associated lymphoproliferative diseases
Terran Petteway
Langerhans cell sarcoma
Non-Hodgkin lymphoma
Follicular dendritic cells
Castleman disease
Tumors of the hematopoietic and lymphoid tissues
List of cancer types
Interferon type I
Adoptive cell transfer
International Classification of Diseases for Oncology
Index of oncology articles
Follicular lymphoma
Neprilysin
Cancer immunotherapy
P110δ
List of skin conditions
DNA vaccine
Follicular dendritic cell sarcoma - Wikipedia
Follicular dendritic cell sarcoma presenting as colonic intussusception
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Tumor17
- Genotyping of 69 histiocytic lesions revealed that 23/48 Langerhans cell lesions were BRAF -V600E-mutant whereas all non-Langerhans cell lesions (including dendritic cell sarcoma, juvenile xanthogranuloma, Rosai-Dorfman disease, and granular cell tumor) were wild-type. (oncotarget.com)
- e The pattern listed is for the spindled cell component of the tumor. (basicmedicalkey.com)
- Hemangioendothelioma is a vascular tumor with several different morphologic patterns that can include a component of ovoid or spindled cells, but generally lacks an inflammatory component. (neoplasiaresearch.com)
- We present a challenging lymphocyte-rich soft tissue lesion that was not recognized to be an unusual hemangioendothelioma until after several recurrences in the arm of a 63 year-old male, which was originally diagnosed as a follicular dendritic cell tumor instead. (neoplasiaresearch.com)
- The most recent tumor consisted predominantly of epithelioid spindled cells with moderate amounts of bubbly pale to eosinophilic cytoplasm with rare discrete cytoplasmic vacuoles, admixed with a prominent lymphoid infiltrate and occasional erythrocytes. (neoplasiaresearch.com)
- The tumor cells were positive for keratin and vascular markers (CD31, CD34, and Factor VIII), but negative for follicular dendritic cell markers (CD21, CD23, CD35). (neoplasiaresearch.com)
- Myeloid sarcoma is a rare solid tumor of the myelogenous cells occurring in an extramedullary site. (nih.gov)
- Myeloid sarcoma, chloroma, or extramedullary acute myeloid leukemia tumor: A tale of misnomers, controversy and the unresolved. (nih.gov)
- Angiomyolipoma (AML) is a rare mesenchymal neoplasm of the tumor, composed of a varying heterogeneous mixture of three tissue components: blood vessels, smooth muscle and adipose cells. (biomedcentral.com)
- The tumor cells were spindled and histiocytoid in shape, with slightly eosinophilic cytoplasm, and arranged along the vessels or scattered among the inflammatory background. (biomedcentral.com)
- The tumor cells were positive immunostaining for HMB-45, Melan-A, and smooth muscle actin. (biomedcentral.com)
- The inflammatory AML should be distinguished from other tumors with inflammatory background such as inflammatory myofibroblastic tumor and follicular dendritic cell tumor and deserves wider recognition for its occurrence as a primary hepatic tumor. (biomedcentral.com)
- Of these, inflammatory or pelioid pattern usually presents as a focal finding within the tumor, but very rarely, they become the predominant pattern [ 4 ], creating great diagnostic confusion with other tumors such as inflammatory myofibroblastic tumor (IMT), follicular dendritc cell (FDC) tumor and other hepatic mesenchymal neoplasms. (biomedcentral.com)
- Her study explores the link between Tumor microenvironment and topics such as Immunotherapy that cross with problems in Cell biology. (research.com)
- This classification attempts to classify lymphomas by cell type (i.e. the normal cell type that most closely resembles the tumor). (newworldencyclopedia.org)
- This review examines the cytohistological features of various nonepithelial and nonlymphoid tumors of the thyroid, including vascular lesions, neural tumors (including granular cell tumor and paraganglioma), smooth muscle tumors, solitary fibrous tumor, histiocytic neoplasms (eg, Langerhans cell histiocytosis and Rosai-Dorfman disease), and follicular dendritic cell sarcoma. (unicatt.it)
- cell histiocytosis and giant cell tumor. (neobiotechnologies.com)
Langerhans11
- 1 ] and was since classified in the 2008 World Health Organization classification of haematolymphoid neoplasms with tumours of histiocytes and dendritic cells, alongside other dendritic cell tumours including Langerhans cell tumours, interdigitating dendritic cell sarcoma and other rare tumours. (biomedcentral.com)
- In conclusion, BRAF mutations in histiocytic proliferations are restricted to lesions of the Langerhans-cell type. (oncotarget.com)
- Broadly speaking, they can be divided into Langerhans and non-Langerhans cell histiocytoses. (thedoctorsdoctor.com)
- Langerhans cell histiocytoses are all defined by the presence of a unique ultrastructural organelle, the Birbeck granule. (thedoctorsdoctor.com)
- Currently, the preferred term is Langerhans cell histiocytosis. (thedoctorsdoctor.com)
- Langerhans cell histiocytosis presenting in the neonatal period: a retrospective case series. (thedoctorsdoctor.com)
- OBJECTIVES: To describe the morphologic characteristics of skin lesions, extent of extracutaneous disease, and outcomes in patients with neonatal presentation of Langerhans cell histiocytosis (LCH), and to examine clinical predictors of disease prognosis. (thedoctorsdoctor.com)
- Epidemiologic study of Langerhans cell histiocytosis in children. (thedoctorsdoctor.com)
- OBJECTIVE: The etiology and pathogenesis of Langerhans cell histiocytosis (LCH) remain poorly understood. (thedoctorsdoctor.com)
- Langerhans cell histiocytosis (LCH) is a rare haematological neoplasm characterized by the accumulation of CD1a + , CD207/Langerin + histiocytes within inflammatory lesions. (biomedcentral.com)
- Recently, transformation of CLL into histiocytic/dendritic/Langerhans cell sarcoma (all are myeloid origin), dubbed as "transdifferentiation", has also been reported. (najms.com)
FDCS10
- Follicular dendritic cell sarcoma (FDCS) is an extremely rare neoplasm. (wikipedia.org)
- Clusterin can be stained to help distinguish FDCS and is involved in the many important cancer hallmarks, including resistance to cell death and evading growth suppressors. (wikipedia.org)
- Follicular dendritic cell sarcoma (FDCS) is a rare intermediate grade sarcoma involving a variety of nodal and extra nodal sites. (elsevierpure.com)
- Metastatic or recurrent follicular dendritic cell sarcoma (FDCS) is a disabling condition on the Compassionate Allowance List, which qualifies an individual for an expedited approval process. (callfred.com)
- FDCS is a rare, malignant cancer that affects the body's follicular dendritic cells, which are cells that help sustain the functions of the body's immune system. (callfred.com)
- EBV + inflammatory follicular dendritic cell (FDC) sarcoma is an indolent malignant neoplasm of spindled FDCs with a rich lymphoplasmacytic infiltrate and a consistent association with Epstein-Barr virus (EBV). (lww.com)
- Follicular dendritic cell sarcoma (FDCS) is an uncommon low-grade malignant sarcoma . (bvsalud.org)
- Follicular dendritic cell sarcoma (FDCS) is an uncommon neoplasm of mesenchymal stem cell origin whose clinical course displays much variability. (biomedcentral.com)
- We describe a case of a 44 year-old woman diagnosed with follicular dendritic cell sarcoma (FDCS). (deepdyve.com)
- FDCS is a very rare disease affecting the dendritic antigen presenting cells and is often misdiagnosed. (deepdyve.com)
Lymphoma28
- citation needed] Proliferation of FDC cells is characteristic of many neoplastic conditions including follicular hyperplasia, follicular lymphoma, nodular lymphocyte predominate Hodgkin's disease and angioimmunoblastic T-cell lymphoma. (wikipedia.org)
- Chemotherapy regimens that have documented responses include lymphoma protocols with cyclophosphamide, doxorubicin, vincristine and prednisone (CHOP) and rituximab with CHOP (R-CHOP) as well as sarcoma protocols of doxorubicin and ifosfamide or gemcitabine and a taxane [ 6 ]. (biomedcentral.com)
- Follicular lymphoma regardless of grade is CD19 positive in 48-79% of the cases while around 6% of the cases are reported negative. (nordiqc.org)
- Large B-cell lymphoma is positive in 24-50% of the cases, another 14% are negative. (nordiqc.org)
- CD19 is generally weakly expressed in B-cell prolymphocytic leukaemia, splenic lymphoma with villous lymphocytes and mantle cell lymphoma. (nordiqc.org)
- Hodgkin and Reed-Sternberg cells in classical Hodgkin Lymphoma are generally CD19 negative, while around 40% are positive for CD20. (nordiqc.org)
- Lymphocytic-Histiocytic (L&H) cells of nodular lymphocytic predominant Hodgkin lymphoma are negative, while staining for CD20 is positive as a rule. (nordiqc.org)
- CD20 is strongly expressed in T-cell rich B-cell lymphoma, B-cell prolymphocytic leukaemia, splenic lymphoma with villous lymphocytes and mantle cell lymphoma as opposed to a weaker CD19 reaction mentioned above. (nordiqc.org)
- Hertzberg MS, Schifter M, Sullivan J, Stapleton K. Paraneoplastic pemphigus in two patients with B-cell non-Hodgkin's lymphoma: significant responses to cyclophosphamide and prednisolone. (medscape.com)
- Martinez De Pablo MI, Iranzo P, Mascaro JM, Llambrich A, Baradad M, Herrero C. Paraneoplastic pemphigus associated with non-Hodgkin B-cell lymphoma and good response to prednisone. (medscape.com)
- Richter's Transformation of chronic lymphocytic leukemia (CLL) to diffuse large B-cell lymphoma or Hodgkin lymphoma (both are B-cell origin) are well described in literature. (najms.com)
- Michelis FV, Kourti G, Skertsou M. Richter transformation of chronic lymphocytic leukemia into composite diffuse large B-cell and Hodgkin lymphoma. (najms.com)
- Feldman AL, Arber DA, Pittaluga S, Martinez A, Burke JS, Raffeld M. Clonally related follicular lymphomas and histiocytic/dendritic cell sarcomas: Evidence for transdifferentiation of the follicular lymphoma clone. (najms.com)
- Transformation of chronic lymphocytic leukemia/small lymphocytic lymphoma to interdigitating dendritic cell sarcoma: Evidence for transdifferentiation of the lymphoma clone. (najms.com)
- Shao H, Xi L, Raffeld M, Feldman AL, Ketterling RP, Knudson R. Clonally related histiocytic/dendritic cell sarcoma and chronic lymphocytic leukemia/small lymphocytic lymphoma: A study of seven cases. (najms.com)
- Wang E, Hutchinson CB, Huang Q, Sebastian S, Rehder C, Kanaly A. Histiocytic sarcoma arising in indolent small b-cell lymphoma: Report of two cases with molecular/genetic evidence suggestive of a 'transdifferentiation' during the clonal evolution. (najms.com)
- Histiocytic/dendritic cell sarcoma arising from follicular lymphoma involving the bone: A case report and review of literature. (najms.com)
- IgVH mutational status and clonality analysis of Richter's transformation: diffuse large B-cell lymphoma and Hodgkin lymphoma in association with B-cell chronic lymphocytic leukemia (B-CLL) represent 2 different pathways of disease evolution. (najms.com)
- Normal and cancer fibroblasts differentially regulate TWIST1, TOX and cytokine gene expression in cutaneous T-cell lymphoma. (uams.edu)
- In lymphoma, the cells in the lymphatic system grow abnormally, dividing too rapidly and growing without any order or control (Longe 2005). (newworldencyclopedia.org)
- DNA-microarray analysis of Burkitt's lymphoma and diffuse large B-cell lymphoma (DLBCL) showing differences in gene expression patterns. (newworldencyclopedia.org)
- green indicates genes that are overexpressed in normal cells compared to lymphoma cells and red indicates genes that are overexpressed in lymphoma cells compared to normal cells. (newworldencyclopedia.org)
- CD21 is also useful for distinguishing marginal zone lymphoma with follicular involvement from follicular lymphoma with marginal zone differentiation. (genomeme.ca)
- When used in concert with other B- and T-cell markers, CD21 is valuable for differentiating between nodular lymphocyte-predominant Hodgkin's lymphoma, T-cell/histiocyte-rich B-cell lymphoma, and lymphocyte-rich classic Hodgkin's lymphoma. (genomeme.ca)
- CD21 staining is useful for recognizing abnormal follicular dendritic cell patterns in angioimmunoblastic T-cell lymphoma and follicular T-cell lymphoma. (genomeme.ca)
- Tru cut biopsy from omental deposit- IHC results confirm Non Hodgkin Lymphoma - Diffuse large B cell Lymphoma- non GCB type. (iriakerala.org)
- The pathogenesis of PTLDs seems to be multifactorial-EBV is main one .Antigenic stimulation Plasmacytoid dendritic cells (PDCs) , regulatory T cells are other factors .Whilst most are high-grade B-cell non-Hodgkin's lymphoma (NHLs), a few are classical Hodgkin's lymphomas. (iriakerala.org)
- 38= Cutaneous T-cell lymphoma, NOS (C44. (cancercentrum.se)
Neoplasms5
- Hematologic malignancies are most commonly associated with paraneoplastic pemphigus, although it can also be associated with carcinomas, sarcomas, and benign neoplasms. (medscape.com)
- It should be noted that the vast majority of neoplasms of the upper aerodigestive tract are epithelial and that some of these can show a spindle cell phenotype, e.g., spindle cell or sarcomatoid carcinoma and myoepitheliomas. (basicmedicalkey.com)
- CD19 is found on majority of B-cell neoplasms with some exceptions. (nordiqc.org)
- The CD19 reactivity patterns differ from those of CD20 in several B-cell lesions: In plasma cells neoplasms with t(11;14) the expression of CD19 and CD20 is mutually exclusive, the majority of cases are CD20+ while only a small fraction of these tumours expresses CD19. (nordiqc.org)
- CD19 is useful in identification of B-cell lineage of majority of B-cell neoplasms but appears to be less useful in subclassifying of B-cell neoplasms in histological material. (nordiqc.org)
Myeloid sarcoma1
- Myeloid Sarcoma: Presentation, Diagnosis, and Treatment. (nih.gov)
CD215
- These cells are best visualized with immunostaining using the FDC markers CD21, CD35, R4/23, clusterin, and KiM4p. (wikipedia.org)
- It has wide morphological spectrum on light microscopy and has characteristic immune-reactivity for dendritic cell markers (CD21, CD23, and CD35). (elsevierpure.com)
- It is a part of B-cell Receptor Complexes (BCR) on the cell surface together with CD21, CD81 and CD225. (nordiqc.org)
- Cluster of Differentiation 21 (CD21) is a glycoprotein on the surface of B-cells that is bound by Epstein-Barr virus (EBV) during infection of these cells. (genomeme.ca)
- CD21 staining is useful for recognizing follicular dendritic cell matrices in normal tonsillar and lymph tissue, and can also stain dendritic cell sarcomas. (genomeme.ca)
Malignant2
- Chan JKC, Fletcher CDM, Nayler SJ, Cooper K. Follicular Dendritic Cell Sarcoma: Clinicopathologic analysis of 17 cases suggesting a malignant potential higher than currently recognized. (neoplasiaresearch.com)
- Baer MR, Krantz SB, Cousar JB, Glick AD, Collins RD. Malignant histiocytoses developing in patients with b-cell lymphomas. (najms.com)
Tumors8
- Fibroblastic or myofibroblastic tumors make up the majority of soft tissue tumors of the aerodigestive tract and range from nonneoplastic or benign proliferations (fibromas) to high-grade malignancies (undifferentiated high-grade pleomorphic sarcomas). (basicmedicalkey.com)
- Vascular tumors should be included in the differential diagnosis of suspected dendritic cell tumors, even if a lymphocyte-rich infiltrate is present. (neoplasiaresearch.com)
- Tumors of histiocytes and dendritic cells: Follicular Dendritic Cell Sarcoma. (neoplasiaresearch.com)
- According to the predominant component, growth pattern, cell type, and other features, the tumors were subcategorized into trabecular, pelioid and inflammatory variants. (biomedcentral.com)
- B-cell heavy chain rearrangement study on blood sample (pure CLL) and liver metastatic NEC (pure NEC, no contamination from CLL) revealed that these two tumors shared similar monoclonal peaks. (najms.com)
- Dendritic cell tumors associated with low-grade b-cell malignancies. (najms.com)
- Radiation Therapy for Young Children Treated With High-Dose Chemotherapy and Autologous Stem Cell Transplant for Primary Brain Tumors. (ucdenver.edu)
- They play a major role in defending the host from both tumors and virally infected cells. (newworldencyclopedia.org)
Metastatic2
- It accounts for only 0.4% of soft tissue sarcomas, but has significant recurrent and metastatic potential and is considered an intermediate grade malignancy. (wikipedia.org)
- Favorable response to PD-1 inhibitor plus chemotherapy as first-line treatment for metastatic follicular dendritic cell sarcoma of the spleen: a case report. (bvsalud.org)
Neoplasm2
- Interdigitating dendritic cell sarcoma subtotally replacing lymph node shows that the neoplasm tends to spare lymphoid follicles. (basicmedicalkey.com)
- Proliferative Lesions of Follicular Dendritic Cells: An Overview, Including a Detailed Account of Follicular Dendritic Cell Sarcoma, of a Neoplasm with Many Faces and Uncommon Etiologic Associations. (neoplasiaresearch.com)
Interdigitating1
- Interdigitating dendritic cell sarcoma involving lymph node shows that the neoplastic cells are spindled and epithelioid with abundant eosinophilic cytoplasm. (basicmedicalkey.com)
Kaposi1
- In cultures, a subpopulation of Kaposi sarcoma cells express CD14. (neobiotechnologies.com)
Tumours2
- Follicular dendritic cell tumours are reported CD19 positive. (nordiqc.org)
- It appears to be potentially useful additional marker of follicular dendritic cell tumours. (nordiqc.org)
Lymphocyte3
- The development of B-cells is not influenced by CD19, but CD19 deficient mice show decrease in lymphocyte number and impairment of lymphocyte function as well as reduction in formation of germinal centres. (nordiqc.org)
- Specially, B cells play the major role in the humoral immune response , as opposed to the cell-mediated immune response that is governed by T cells , another type of lymphocyte. (newworldencyclopedia.org)
- Lymphocyte-like natural killer (NK) cells also are involved in the immune system , albeit part of the innate immune system . (newworldencyclopedia.org)
Chemotherapy2
- At the time of the follicular dendritic cell sarcoma discovery, information on the effect of chemotherapy and radiation on it was nonexistent. (wikipedia.org)
- Intraperitoneal Follicular Dendritic Cell Sarcoma: Role of Chemotherapy and Bone Marrow Allotransplantation in Locally Advanced Disease? (deepdyve.com)
Neoplastic cells4
- Spindled to oval neoplastic cells with ill-defined cell borders were dispersed or formed loose whorled fascicles in a dense lymphoplasmacytic background. (lww.com)
- The neoplastic cells showed variable expression of FDC markers and were labeled for Epstein-Barr virus-encoded RNA on in situ hybridization. (lww.com)
- Typically, neoplastic cells lack CD1a, desmin and CD45 staining. (biomedcentral.com)
- These neoplastic cells are the result of sporadic activating mutations in genes of the mitogen-activated protein kinase (MAPK) signaling pathway expressed by multipotent hematopoietic stem/progenitor cells or committed myeloid precursors [ 1 ]. (biomedcentral.com)
Paraneoplastic pemphigus3
- summarize the increasing role of cellular immunity in paraneoplastic pemphigus, evidenced by lesional mononuclear cells and elevated IL-6 levels in sera from paraneoplastic pemphigus patients. (medscape.com)
- Marzano AV, Vezzoli P, Mariotti F, Boneschi V, Caputo R, Berti E. Paraneoplastic pemphigus associated with follicular dendritic cell sarcoma and Castleman disease. (medscape.com)
- Autoantibody production from a thymoma and a follicular dendritic cell sarcoma associated with paraneoplastic pemphigus. (medscape.com)
Clinicopathologic1
- These 9 cases thus broaden the clinicopathologic scenarios of EBV + inflammatory FDC sarcoma. (lww.com)
Inflammatory4
- Histologically, EBV + inflammatory FDC sarcomas arising from these anatomic sites were similar to their hepatosplenic counterparts. (lww.com)
- We herein present one case of hepatic AML exhibiting prominent inflammatory cells in the background, which happened in a 61-year-old Chinese female patient, without signs of tuberous sclerosis. (biomedcentral.com)
- Histologically, the striking feature was the infiltration of numerous inflammatory cells in the background, including small lymphocytes, plasma cells, and eosnophils. (biomedcentral.com)
- The extensive involvement of the mononuclear phagocytic system, including tissue macrophages and endothelial cells suggests participation of inflammatory mediators from this lineage with the resulting vascular dilatation and increasing permeability. (cdc.gov)
Proliferation1
- Transgenic mice over-expressing CD19 show reciprocal phenotype with increase in peritoneal B-1 lymphocytes, increase B-cell proliferation, reduction of number of B-cells exiting bone marrow, reduced surface IgM, and elevated humoral immune responses. (nordiqc.org)
Indolent1
- Follicular dendritic cell sarcoma is a rare tumour with clinical behaviour covering a spectrum from indolent to aggressive disease. (biomedcentral.com)
Castleman1
- The histopathogenetic classification distinguishes hyaline vascular Castleman disease, plasma cell Castleman disease, human herpesvirus 8 (HHV-8)-associated Castleman disease, and multicentric Castleman disease not otherwise specified. (iriakerala.org)
Germinal4
- citation needed] Follicular dendritic cells are localized in germinal centers of lymphoid follicles and have an integral role in regulation of the germinal center reaction and present antigens to B cells. (wikipedia.org)
- Follicular dendritic cells (FDC) form a tight meshwork in primary and secondary lymphoid follicles and interact with T and B lymphocytes through antigen presentation and generation and regulation of the germinal centre reaction [ 2 , 3 ]. (biomedcentral.com)
- Tonsil and appendix are both appropriate controls: The mantle zone B-cells, the germinal centre B-cells and the follicular dendritic cells must show a strong staining reaction. (nordiqc.org)
- Scattered follicles showing onion skinning of the mantle zones and hyalinised atrophic germinal centres with predominance of follicular dendritic cells and "lolipop"shaped blood vessels were noted. (iriakerala.org)
Cytokine2
- Her work deals with themes such as Neuroscience and Cytokine, which intersect with Dendritic cell. (research.com)
- Her research integrates issues of In vitro, Cytokine and Follicular dendritic cells in her study of Cell biology. (research.com)
Lymph nodes1
- Generalized reticular cell sarcoma of lymph nodes associated with lymphatic leukemia. (najms.com)
Tissue1
- Histologically similar to those in the kidney, hepatic AML consists of a mixture of myoid cells, adipose tissue and thick-walled vessels. (biomedcentral.com)
Markers1
- Vascular as well as dendritic cell markers should be included in the immunohistochemical panel employed in their evaluation. (neoplasiaresearch.com)
Epithelial1
- Direct immunofluorescence microscopy performed on epithelial biopsy specimen obtained from a patient with pemphigus vulgaris detects immunoglobulin G deposits at the epithelial cell surfaces. (medscape.com)
Antigen4
- Innate lymphoid cell is closely connected to Antigen-presenting cell in her research, which is encompassed under the umbrella topic of Dendritic cell. (research.com)
- The concepts of her Cancer cell study are interwoven with issues in Acquired immune system, Antigen, T cell immunity, Immunity and Blockade. (research.com)
- Her Immunity study combines topics in areas such as Cancer cell, Blockade, Antigen, Cell biology and Immunotherapy. (research.com)
- Her study in Acquired immune system and T cell immunity are all subfields of Antigen. (research.com)
Epithelioid1
- The most common type is the mixed type which comprises sheets of epithelioid muscle cells admixed with islands of adipocytes and abnormal vessels. (biomedcentral.com)
Subpopulation1
- It is a specific and sensitive marker of B-cells widely expressed from early pre-B stages, normal B-cells and normal plasma cells (staining is weaker than normal B-cells and a subpopulation may lack expression). (nordiqc.org)
Carcinoma1
- Histopathology of peripheral nerve and sympathetic ganglion from a patient with autonomic failure, oat-cell carcinoma of the lung, and positive anti-HU antibody titer. (medscape.com)
Primary2
- Taking Forsythia extracts or nutritional supplements may benefit Primary Follicular Dendritic Cell Sarcoma patients on Radiation treatment over Folic Acid nutritional supplements. (addon.life)
- Should you take it when diagnosed with Primary Follicular Dendritic Cell Sarcoma? (addon.life)
Viral2
- 13 ] have reported v-Raf murine sarcoma viral oncogene homolog B (BRAF) V600E mutations in 5 from 27 (18.5 %) cases tested. (biomedcentral.com)
- RESULTS: Lassa fever virus antigens and viral particles were observed in multiple organ systems and cells, including cells in the mononuclear phagocytic system and other specialized cells where it had not been described previously. (cdc.gov)
Marginal zone1
- Only 13% of marginal zone B-cell lymphomas are positive. (nordiqc.org)