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  Diagnostic significance of coexpression of intermediate filaments in fine needle aspirates of human tumors.

Domagala, W., Weber, K., & Osborn, M. (1988). Diagnostic significance of coexpression of intermediate filaments in fine needle aspirates of human tumors. Acta Cytologica, 32(1), 49-59.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-EE46-3 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-EE48-0
Genre: Journal Article

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Domagala, W., Author
Weber, K.1, Author              
Osborn, M.1, Author              
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1Department of Biochemistry and Cell Biology, MPI for biophysical chemistry, Max Planck Society, ou_578618              

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 Abstract: A study was undertaken of the diagnostic significance of the coexpression of intermediate filaments in fine needle aspirates of human tumors. Three types of coexpression were found: (1) true coexpression, in which tumor cells simultaneously express more than one intermediate filament protein; (2) pseudocoexpression, in which various tumor cell types from histogenetically different parts of a complex tumor show different results; and (3) false coexpression, in which tumor cells with one or two types of intermediate filaments are present together with benign cells expressing a different filament type. True coexpression of vimentin and keratin was documented in renal cell carcinomas, endometrial carcinomas, certain thyroid carcinomas and Hürthle cell adenomas. Coexpression of keratin and neurofilaments was seen in Merkel cell carcinomas, and coexpression of desmin and vimentin was found in leiomyosarcomas. Keratin, vimentin and neurofilament expression was seen in medullary thyroid carcinomas, and keratin, vimentin and glial fibrillary acidic protein expression was observed in pleomorphic adenomas of the salivary gland. Pseudocoexpression was noted in synovial sarcoma, epithelioid sarcoma, benign cystosarcoma phyllodes of the breast, teratocarcinoma, malignant granular cell tumor, progonoma, Wilms' tumor and triton tumor. Sources of false coexpression are also discussed.

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Language(s): eng - English
 Dates: 1988-01
 Publication Status: Published in print
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Title: Acta Cytologica
Source Genre: Journal
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Pages: - Volume / Issue: 32 (1) Sequence Number: - Start / End Page: 49 - 59 Identifier: -