1/3. Minor salivary glands: causing major problems.Tumours arising in the parapharyngeal space (PPS) are rare and account for approximately 0.5% of all head and neck neoplasms. These neoplastic processes represent a wide variety of both benign (80%) and malignant lesions arising from the diverse range of structures within and surrounding the PPS. The PPS is typically conceptualized as a potential neck space in the shape of an inverted cone with its base at the skull base and apex at the greater cornu of the hyoid. Because of this unique structure, lesions must often grow to a considerable size before symptoms become apparent and clinical detection is possible. A rare case of mucoepidermoid tumour of the minor salivary glands arising in the prestyloid parapharyngeal space is described. The complex anatomical and pathological considerations within this region present a substantial challenge to the head and neck surgeon in the evaluation and management of these lesions.- - - - - - - - - - ranking = 1keywords = gland (Clic here for more details about this article) |
2/3. Glandular odontogenic cyst: analysis of cytokeratin expression and clinicopathological features.The glandular odontogenic cyst (GOC) is a rare odontogenic cyst which is still controversial in regard to classification, terminology, and origin. The first Japanese case of GOC is reported. Immunohistochemical examination for expression of cytokeratins and epithelial membrane antigen by monoclonal antibodies suggested that the lining epithelium was of odontogenic origin with metaplastic mucus-laden cells. We have reviewed the literature and compared the clinicopathological findings of the reported case of GOC with those of botryoid odontogenic cysts (BOC). The anatomical location, age range, and sex of GOC cases were very similar to those of BOC. GOC appears to be a multiocular and mucoepidermoid variant of non-keratinizing odontogenic cysts, which also includes BOC. GOC should be separated from the other types of odontogenic cyst and central mucoepidermoid tumours of salivary gland origin.- - - - - - - - - - ranking = 0.4keywords = gland (Clic here for more details about this article) |
3/3. Nuclear pseudoinclusions in a case of parotid mucoepidermoid carcinoma.Mucoepidermoid carcinoma is a common malignant salivary gland tumor characterized by cellular and architectural heterogeneity. Nuclear pseudoinclusions have not been previously described in this salivary gland tumor. This is a description of the cytologic and histologic findings of a parotid mucoepidermoid carcinoma with nuclear pseudoinclusions.- - - - - - - - - - ranking = 0.4keywords = gland (Clic here for more details about this article) |