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Curated Journal Articles on Mesothelioma

Extrathoracic mesothelial proliferations and their mimics

Ultrastructural Pathology. 2006 Jan-Feb;30(1):37-51. [Link]

Josep Lloreta-Trull A1

A1 Department of Pathology, Hospital del Mar-IMAS-IMIM, Universitat Pompeu Fabra, Barcelona, Spain

Abstract

Mesothelial proliferations, either reactive or neoplastic in nature, often pose difficult diagnostic dilemmas. Electron microscopy continues to be a gold standard in the identification of mesothelial differentiation. However, it is very common to apply long panels of antibodies for that purpose. In most cases, light microscopy and immunohistochemistry will solve the problem. However, the definitive, specific, and sensitive immunohistochemical marker is still lacking. This is particularly true in peritoneal and testicular mesothelial tumors, in which common embryologic origin with epithelial elements results in overlapping immunohistochemistry and morphology. The particularities of peritoneal and testicular mesothelial proliferations, and the main tumors that may mimic them in these sites, as well as the value and limitations of immunohistochemistry and electron microscopy in their differential diagnosis are the subject of this review.

Keywords: electron microscopy, immunohistochemistry, mesothelioma, mesothelium, ovarian tumors, peritoneal tumors, serosal carcinoma, serosal neoplasms, testicular tumors

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