نتایج جستجو برای: salivary gland neoplasms
تعداد نتایج: 568064 فیلتر نتایج به سال:
Salivary gland tumors are uncommon, the world wide annual incidence of salivary gland tumors ranges from 0.4 to 13.5 cases per 100 000 population (Auclair et al., 1991). Tumors of salivary glands account for 2% to 6.5 % of head and neck neoplasms and 21% to 46% are malignant (Ellis & Auclair, 1996). In Bangkok, during the period 2001-2003, the estimated age standardized incidence rate of saliva...
AIMS To evaluate cytokeratin (CK) 7/20 expression patterns in salivary gland neoplasia. METHODS AND RESULTS Formalin-fixed paraffin embedded tissue from 153 salivary gland tumours were evaluated for CK7/20 immunoreactivity. The tumours included pleomorphic adenoma (n = 24), myoepithelioma (n = 9), papillary cystadenoma (n = 3), oncocytoma (n = 2), adenoid cystic carcinoma (n = 22), mucoepider...
Salivary gland tumors are relatively rare neoplasms, mostly located in the parotid gland, and few are malignant. Preoperative evaluation of salivary gland tumors includes fine needle aspiration cytology (FNAC). OBJECTIVE The purpose of this study was to determine the importance of FNAC in the evaluation of rare salivary gland neoplasms. MATERIAL AND METHODS Four cases of rare salivary gland...
Objective: Recent studies revealed the existence of ectopic gene at t(6;9)(q22-23;p23-24) in adenoid cystic carcinoma (ACC), resulting in MYB-NFIB fusion gene formation. In this study, we discuss the expression of MYB of ACC in salivary gland and its clinicopathological significance. Methods: We examined 98 samples of salivary gland adenoid cystic carcinoma and 68 samples of salivary non-ACC ne...
OBJECTIVE To test the validity of the reported high incidence (50%) of malignancy in neoplasms of the submandibular salivary gland, and to compare it with that of the parotid gland. METHODS This is a retrospective analysis of major salivary gland neoplasms in 127 patients who were treated between August 1988 and December 2004 (15 1/2 years) at Kalafong Hospital, Pretoria. RESULTS All but 1 ...
introdouction: mucoepidermoid carcinoma (mec) is one of the most common salivary gland malignancies. the prevalence of salivary gland tumors varies in different geographic areas. in this report, we evaluated the prevalence of mec in iran and compared it with that previously reported in other countries. materials and methods: the files of oral pathology, shahid beheshti university of medical sci...
Background and objectives: Salivary gland tumours account for 2-6.5% of all the neoplasms of the head and neck. Fine needle aspiration cytology (FNAC) is being increasingly used in the diagnosis of salivary gland tumours. The objective of this study was to evaluate the diagnostic accuracy and the sensitivity and specificity of FNAC in various salivary gland tumours in correlation with their his...
Introduction Salivary glands are found in and around the oral cavity, and they are divided into major and minor salivary glands. The major salivary glands are the parotid, submandibular, and sublingual glands; the minor salivary glands are located in the lips, buccal mucosa, palate, and throat. Generally, salivary gland diseases are not common in the paediatric population. The classification of...
Salivary gland tumours most often present as painless enlarging masses. Most are located in the parotid glands and most are benign. The principal hurdle in their management lies in the difficulty in distinguishing benign from malignant tumours. Investigations such as fine needle aspiration cytology and MRI scans provide some useful information, but most cases will require surgical excision as a...
Among the more common types of intraoral minor salivary gland neoplasms are pleomorphic adenoma, basal cell adenoma, polymorphous low-grade adenocarcinoma, and adenoid cystic carcinoma. These minor salivary gland neoplasms share similar morphologic features and to a large extent immunohistochemical findings. Differentiation between these benign and malignant neoplasms is often predicated on the...
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