• In children and adolescents, salivary gland tumors make up 0.5% of all malignancies. (medscape.com)
  • Almost half of all submandibular gland neoplasms and most sublingual and minor salivary gland tumors are malignant. (medscape.com)
  • Successful diagnosis and treatment of patients with salivary gland tumors require a thorough understanding of tumor etiology, biologic behavior of each tumor type, and salivary gland anatomy. (medscape.com)
  • An estimated 700 deaths (0.4 per 100,000 for males and 0.2 per 100,000 for females) related to salivary gland tumors occur annually. (medscape.com)
  • Obtaining reliable pre-operative diagnosis is crucial in planning treatment for patients with salivary gland tumors. (tmu.edu.tw)
  • The purpose of this study was to evaluate the accuracy of pre-operative clinical diagnosis of salivary gland tumors managed at a single tertiary university hospital over a period of 20 years. (tmu.edu.tw)
  • A retrospective analysis of the period between 1992 and 2011 was carried out to review the cases of patients with salivary gland tumors. (tmu.edu.tw)
  • While it is difficult to draw any conclusion for non-parotid gland tumors, surgical intervention should be recommended in patients with parotid tumors clinically suspected to be malignant, and all submandibular, sublingual and minor salivary gland tumors. (tmu.edu.tw)
  • Although researchers have learned much from the study of this diverse group of tumors over the years, the diagnosis and treatment of salivary gland neoplasms remain complex and challenging problems for the head and neck surgeon. (medscape.com)
  • Salivary gland neoplasms make up 6% of all head and neck tumors. (medscape.com)
  • [ 4 , 5 ] ) Benign neoplasms occur more frequently in women than in men, but malignant tumors are distributed equally between the sexes. (medscape.com)
  • This theory more logically explains neoplasms that contain multiple discrete cell types, such as pleomorphic adenomas and Warthin tumors. (medscape.com)
  • Of the parotid and submandibular gland tumors, 86 and 67% were benign, respectively. (tmu.edu.tw)
  • The clinical diagnostic accuracies for diagnosis of parotid tumors as benign or malignant were 100 and 57%, respectively. (tmu.edu.tw)
  • Therefore, the overall clinical judgment of benign and malignant tumors in the submandibular gland is unreliable. (tmu.edu.tw)
  • Warthin tumors, also known as lymphomatous papillary cystadenomas, are benign, sharply demarcated tumors of the salivary gland. (stubensaenger.de)
  • Adrenocortical tumors encompass a spectrum of diseases with often seamless transition from benign (adenoma) to malignant (carcinoma) behavior. (oncolink.org)
  • A malignant epithelial tumor with a glandular organization. (lookformedical.com)
  • Serous demilunes = mucinous gland with "cap" consisting of a serous glandular component. (librepathology.org)
  • Most series report that about 80% of parotid neoplasms are benign, with the relative proportion of malignancy increasing in the smaller glands. (medscape.com)
  • That is, as the size of the gland decreases, the incidence of malignancy of a tumor in the gland increases in approximately these proportions. (medscape.com)
  • Mucoepidermoid carcinoma is the most common salivary gland malignancy in children. (medscape.com)
  • INTRODUCTION: Adamantinoma-like Ewing sarcoma (ALES) is a rare aggressive malignancy occasionally diagnosed in the thyroid gland. (bvsalud.org)
  • Neutrophilic eccrine hidradenitis (NEH) is a neutrophilic dermatosis primarily affecting the eccrine glands and occurs most commonly in patients undergoing chemotherapy for a malignancy. (annals.edu.sg)
  • A carcinoma derived from stratified SQUAMOUS EPITHELIAL CELLS. (lookformedical.com)
  • An invasive (infiltrating) CARCINOMA of the mammary ductal system (MAMMARY GLANDS) in the human BREAST. (lookformedical.com)
  • An anaplastic, highly malignant, and usually bronchogenic carcinoma composed of small ovoid cells with scanty neoplasm. (lookformedical.com)
  • It represents a large group of epithelial lung malignancies which can be divided into two clinical groups: SMALL CELL LUNG CANCER and NON-SMALL-CELL LUNG CARCINOMA . (lookformedical.com)
  • Tobacco and alcohol, which are highly associated with head and neck squamous cell carcinoma, have not been shown to play a role in the development of malignancies of the salivary glands. (medscape.com)
  • Neoplasms that arise in the salivary glands are relatively rare, yet they represent a wide variety of both benign and malignant histologic subtypes as seen in the image below. (medscape.com)
  • Berstein L, Gurney JG: Carcinomas and other malignant epithelial neoplasms. (oncolink.org)
  • Contrasting information was derived through a literature review by Louredo et al, which indicated that in pediatric patients, most salivary gland neoplasms (75.4%) are malignant. (medscape.com)
  • Wieneke JA, Thompson LD, Heffess CS: Adrenal cortical neoplasms in the pediatric population: a clinicopathologic and immunophenotypic analysis of 83 patients. (oncolink.org)
  • The concept does not refer to neoplasms located in tissue composed of squamous elements. (lookformedical.com)
  • A study from the Netherlands, by Valstar et al, found an overall 20-year recurrence rate for salivary gland pleomorphic adenomas of 6.7%, with the first recurrence arising at a median of 7 years. (medscape.com)
  • Transfer of a neoplasm from its primary site to lymph nodes or to distant parts of the body by way of the lymphatic system. (lookformedical.com)
  • Patients with malignant lesions typically present after age 60 years, whereas those with benign lesions usually present when older than 40 years. (medscape.com)
  • Salivary gland neoplasms most commonly appear in the sixth decade of life. (medscape.com)
  • In addition, the investigators found that 0.15% of the lesions underwent malignant transformation. (medscape.com)
  • Adipose tissue is found between the glands. (librepathology.org)
  • Salivary gland neoplasms are rare in children. (medscape.com)
  • ALES is a rare subtype that demonstrates the EWSR1-FLI1 translocation characteristic of ES and demonstrates complex epithelial differentiation including diffuse cytokeratin and p40 expression. (bvsalud.org)
  • A primary malignant neoplasm of epithelial liver cells. (lookformedical.com)
  • They are classified essentially as primary (true, epithelial) and secondary (pseudo, non-epithelial) based on the presence. (annals.edu.sg)
  • Salivary gland neoplasms occurred with slightly greater frequency in girls (57.4% of patients) than in boys. (medscape.com)
  • A malignant neoplasm made up of epithelial cells tending to infiltrate the surrounding tissues and give rise to metastases. (lookformedical.com)
  • A malignant neoplasm characterized by the formation of numerous, irregular, finger-like projections of fibrous stroma that is covered with a surface layer of neoplastic epithelial cells. (lookformedical.com)