Clinicopathologic analysis of angiomyofibroblastoma of the female genital tract. (1/28)
OBJECTIVE: To study the clinicopathologic features and immunoprofile of angiomyofibroblastoma (AMF) with emphasis on differential diagnosis. METHODS: Seven vulvar, two vaginal and one perineal angiomyofibroblastomas were evaluated by light microscopy and immunohistochemistry. The immunohistochemical studies were performed on paraffin-embedded sections using the standard ABC method with a panel of antibodies. RESULTS: Angiomyofibroblastoma predominantly occurred in middle-aged women in the genital region, especially in the superficial area of the vulva. Clinically, most of the tumors presented as slowly growing painless masses and were often diagnosed as Bartholin's gland cysts. Histologically, the tumors were all well-circumscribed and characterized by alternating hypocellular and hypercellular areas with abundant thin-walled blood vessels. The tumor cells were bland and spindle-shaped or epithelioid and tended to concentrate around the vessels or cluster in small nests. Immunohistochemically, the tumor cells expressed vimentin and estrogen receptor protein in all 10 cases and desmin in 9 cases. Three cases showed weak or focal immunoreactivity to alpha-smooth muscle actin and muscle specific actin. All ten patients were treated by local excision. Follow-up showed a benign course with no signs of recurrence. CONCLUSIONS: Angiomyofibroblastoma is a distinctive neoplasm that has a propensity to occur in the female genital tract. Recognition of this entity is important to avoid misdiagnosis with other vulvar angiomyxoid neoplasms. (+info)Characterization of focal hepatic lesions with SPIO-enhanced MRI. (2/28)
AIM: To evaluate the value of superparamagnetic iron oxide (SPIO) enhanced MRI in characterizing focal hepatic lesions. METHODS: Forty-three patients (32 men,11 women, mean age 51 years, age range 25-74 years) with previously identified focal hepatic lesions were enrolled into this study. All the patients underwent plain, Gd-DTPA enhanced MRI and the SPIO enhanced MRI 1-7 d later. The surgico-pathologic diagnosis was aestablished in 31 cases and the diagnosis in other 12 cases was made on the basis of clinical findings and biochemical tests. The signal changes of lesions were analyzed and the CNRs of lesion-to-liver were measured before and after SPIO enhancement. The data were analyzed by paired t test. RESULTS: Focal hepatic lesions included primary hepatocellular carcinoma (HCC,n=22), hemangioma (n=5), cyst (n=4), metastases (n=5), cirrhotic nodule (n=4), focal nodular hyperplasia (FNH, n=5) and other miscellaneous lesions (n=6). After SPIO enhancement HCC demonstrated iso- or slight hyperintensity on T1WI and moderate hyperintersity on T2WI, hemangioma showed moderate hyperintensity on T1WI and obvious hyperintensity on T2WI, the SI of cyst had no change either on T1WI or on T2WI, cirrhotic nodules revealed iso-intensity on T2WI, and the SI of FNH decreased significantly on T2WI. No specific manifestations were found in the other 6 miscellaneous lesions after SPIO enhancement. CONCLUSION: SPIO enhanced-MRI can improve the characterization confidence for diagnosis of focal hepatic lesions. (+info)Lack of CD34 positive stromal cells within angiomyomas (vascular leiomyomas). (3/28)
AIMS: To investigate the role of CD34 positive stromal cells in the morphogenesis and tumour growth regulation of angiomyomas (vascular leiomyomas). METHODS: Histochemical analysis using monoclonal antibodies to CD34 and CD31 was performed in 10 angiomyomas and their adjacent soft tissue. RESULTS: CD34 positive stromal cells were not seen within the tumour tissue; the thick walled vessels within the tumours lacked CD34 positive stromal cells. In contrast, bundles of CD34 positive stromal cells were detected at the tumour border of all of the angiomyomas and in the adventitial tissue of the surrounding normal vessels. CONCLUSIONS: The lack of CD34 positive stromal cells within an angiomyoma is associated with the characteristic morphology of an angiomyoma. (+info)Angioleiomyoma of the Achilles tendon. (4/28)
Angioleiomyoma, a relatively rare tumor of smooth muscle origin, has been reported in many anatomical sites. We present a patient who was referred with a diagnosis of nodular Achilles tendinopathy. At exploration, the mass was excised, and histopathology revealed it to be an angioleiomyoma. Tumoral masses should form part of the differential diagnosis of a subcutaneous lesion on an extremity, particularly the lower limb. (+info)Spontaneously ruptured uterine angioleiomyoma. (5/28)
Angioleiomyoma is an uncommon type of leiomyoma of the uterus that originates from smooth muscle cells and contains thick-walled vessels. A 45-year-old woman with the complaint of lower abdominal pain was admitted to the hospital. In the operation a ruptured, bleeding uterine tumor was seen. She underwent total hysterectomy and bilateral salpingo-oophorectomy. On pathologic examination of the specimen, the tumor was diagnosed as angioleiomyoma. Here, an unusual clinical presentation of uterine angioleiomyoma was reported. (+info)Giant angioleiomyoma in extremity: report of two cases. (6/28)
Angioleiomyomas are smooth muscle tumors that occur most often in the extremities and are usually less than 2 cm in diameter. We present 2 case reports of giant angioleiomyoma. Case 1 was a 51-year-old woman with a 5-year history of a slowly growing mass 12x10 cm in diameter in the right posterior thigh. The tumor was larger than any previously reported. Case 2 was a 72-year-old man with an 8-year history of a slowly growing mass 6x6 cm in diameter in the left palm. The tumor was unique in that it grew to a giant size in the hand of the elderly patient. Magnetic resonance imaging of both cases confirmed the tumors' presence in the subcutis. T1-weighted images showed homogenous signal isointense to muscle. On T2-weighted images, areas of hyperintensity and hypointensity intermingled. Three-dimensional gadolinium-enhanced magnetic resonance angiography showed rapid initial enhancement followed by a gradual increase in enhancement, suggesting that the tumors were rich in vessels. Microscopic examination revealed numerous vascular channels embedded within a huge smooth muscle component. (+info)Angioleiomyoma of the small intestine - a rare cause of gastrointestinal bleeding. (7/28)
BACKGROUND: Benign tumors are a rare cause of gastrointestinal hemorrhage of which angioleiomyomas constitute a very small minority. They have been reported in literature to present with volvulus, bleeding or intussusceptions. CASE PRESENTATION: An interesting case of a patient presenting with gastrointestinal bleeding from an underlying angioleiomyoma is discussed along with its management options. CONCLUSION: Angioleiomyoma though rare can be managed successfully by surgical and/or minimally invasive endovascular procedures. (+info)Angiomyofibroblastoma of the vulva. (8/28)
(+info)Angiomyoma is a benign tumor composed of smooth muscle and blood vessels, often found in the uterus as a leiomyoma or in the skin as a spindle cell hemangioma.
An angiomyoma is a benign tumor that is composed of both blood vessels and smooth muscle cells. It is also known as a vascular leiomyoma. These types of tumors can occur in various parts of the body, but when they occur in the uterus, they are often referred to as fibroids. Angiomyomas are typically slow-growing and asymptomatic, but in some cases, they may cause symptoms such as heavy menstrual bleeding, pelvic pain, or pressure on surrounding organs. Treatment options for angiomyomas may include observation, medication, or surgical removal.
Angioleiomyoma
... (vascular leiomyoma, angiomyoma) of the skin is thought to arise from vascular smooth muscle, and is generally ...
List of MeSH codes (C04)
... angiomyoma MeSH C04.557.450.590.450.455 - leiomyoma, epithelioid MeSH C04.557.450.590.450.465 - leiomyomatosis MeSH C04.557. ...
International Classification of Diseases for Oncology
M8892/0 Cellular leiomyoma M8893/0 Bizarre leiomyoma Symplastic/atypical/pleomorphic leiomyoma M8894/0 Angiomyoma Vascular ...
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Fig 15.14 a-d. Angiomyoma in a 46-year-old man with a long standing swelling in the left hand, recently increased in volume. a ... Angioleiomyoma, angiomyoma or vascular leiomyomas are histologically divided into three subtypes: solid, cavernous and venous. ... Illustration of an angiomyoma with nonenhancement on T1-weighted MR images after gadolinium contrast injection and very high ...
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Angiomyoma Preferred Term Term UI T054505. Date01/01/1999. LexicalTag NON. ThesaurusID NLM (1994). ... Angiomyoma Preferred Concept UI. M0027458. Scope Note. A benign tumor consisting of vascular and smooth muscle elements.. Terms ... Angiomyoma. Tree Number(s). C04.557.450.590.450.125. Unique ID. D018229. RDF Unique Identifier. http://id.nlm.nih.gov/mesh/ ...
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Angiomyoma Preferred Term Term UI T054505. Date01/01/1999. LexicalTag NON. ThesaurusID NLM (1994). ... Angiomyoma Preferred Concept UI. M0027458. Scope Note. A benign tumor consisting of vascular and smooth muscle elements.. Terms ... Angiomyoma. Tree Number(s). C04.557.450.590.450.125. Unique ID. D018229. RDF Unique Identifier. http://id.nlm.nih.gov/mesh/ ...
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Final histological examination concluded to ureteral angiomyoma. DISCUSSION: Angiomyoma is rare benign smooth muscle tumor with ... Pelvic ureteral angiomyoma mimicking urothelial carcinoma: A case report. Chaker, Kays; Marrak, Mahdi; Ouanes, Yassine; Zehani ... BACKGROUND: Angiomyoma is a rare benign tumor that can occur in any organ with smooth muscles. No one has already described an ... Symptomatology depends on the organ that angiomyoma is developed from, and is usually mimicking malignant tumors. CONCLUSION: ...
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Angioleiomyoma2
- Angioleiomyoma (vascular leiomyoma, angiomyoma) of the skin is thought to arise from vascular smooth muscle, and is generally acquired. (wikipedia.org)
- Angioleiomyoma, angiomyoma or vascular leiomyomas are histologically divided into three subtypes: solid, cavernous and venous. (5y1.org)
Leiomyoma1
- Angioleiomyoma (vascular leiomyoma, angiomyoma) of the skin is thought to arise from vascular smooth muscle, and is generally acquired. (wikipedia.org)