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Veterinary Medicine International
Volume 2010, Article ID 396794, 4 pages
Case Report

Predominantly Fibrous Malignant Mesothelioma in a Cat

Department of Veterinary Pathology, Freie Universitaet Berlin, Robert-von-Ostertag-Str. 15, 14163 Berlin, Germany

Received 25 February 2010; Revised 22 April 2010; Accepted 26 April 2010

Academic Editor: Jyoji Yamate

Copyright © 2010 Alexander Th. A. Weiss et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Malignant mesotheliomas are rare tumours in domestic cats. They occur within the abdominal or thoracic cavity and are regularly associated with pleural or peritoneal effusions. The histopathological diagnosis can be quite challenging, as these neoplasms may resemble other epithelial or mesenchymal neoplasms. However, differentiation can be achieved by immunohistochemistry in most cases. Here we describe the rare case of a malignant mesothelioma of the fibrous subtype in the thoracic cavity of a cat and discuss differential diagnoses and treatment options for this tumor type.