[An electron microscopic histochemical study on proteoglycans in salivary gland myoepithelioma]. 1995

J Wang, and Q Wu, and K Sun
School of Stomatology, Beijing Medical University.

Four myoepitheliomas and four parotid gland were studied histochemically be electron microscopy after stain with ruthenium red. It was found that the normal myoepithelial cells of parotid gland had no secretion function, whereas the myoepithelioma cells were capable of secreting proteoglycans and might form the myxoid region in this tumor. The authors propose that in the pathological diagnosis and differentiat diagnosis of salivary gland epithelial tumors, the appearance of the myxoid region is not only the pathological feature of pleomorphic adenoma, but also the pathological change of myoepithelioma.

UI MeSH Term Description Entries
D008854 Microscopy, Electron Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen. Electron Microscopy
D009208 Myoepithelioma A usually benign tumor made up predominantly of myoepithelial cells. Myoepithelial Tumor,Myoepithelial Tumors,Myoepitheliomas,Tumor, Myoepithelial,Tumors, Myoepithelial
D011509 Proteoglycans Glycoproteins which have a very high polysaccharide content. Proteoglycan,Proteoglycan Type H
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012430 Ruthenium Red An inorganic dye used in microscopy for differential staining and as a diagnostic reagent. In research this compound is used to study changes in cytoplasmic concentrations of calcium. Ruthenium red inhibits calcium transport through membrane channels. Ammoniated Ruthenium Oxychloride,Oxychloride, Ammoniated Ruthenium,Red, Ruthenium,Ruthenium Oxychloride, Ammoniated
D012468 Salivary Gland Neoplasms Tumors or cancer of the SALIVARY GLANDS. Cancer of Salivary Gland,Non-Sebaceous Lymphadenomas,Salivary Gland Cancer,Salivary Gland Lymphadenomas,Sebaceous Lymphadenomas,Cancer of the Salivary Gland,Neoplasms, Salivary Gland,Cancer, Salivary Gland,Cancers, Salivary Gland,Gland Neoplasm, Salivary,Gland Neoplasms, Salivary,Lymphadenoma, Non-Sebaceous,Lymphadenoma, Salivary Gland,Lymphadenoma, Sebaceous,Lymphadenomas, Non-Sebaceous,Lymphadenomas, Salivary Gland,Lymphadenomas, Sebaceous,Neoplasm, Salivary Gland,Non Sebaceous Lymphadenomas,Non-Sebaceous Lymphadenoma,Salivary Gland Cancers,Salivary Gland Lymphadenoma,Salivary Gland Neoplasm,Sebaceous Lymphadenoma

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