Cutaneous mast cell tumour within a lipoma in a boxer

Jakab, Csaba and Szász, Attila and Kulka, Janina and Schaff, Zsuzsa and Rusvai, Miklós and Németh, Tibor and Gálfi, Péter (2009) Cutaneous mast cell tumour within a lipoma in a boxer. Acta Veterinaria Hungarica, 57 (2). pp. 263-274. ISSN 0236-6290

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Abstract

This report describes a case of a canine cutaneous grade I mast cell tumour which developed within a lipoma in the right axillar region of an 8-year-old male Boxer. Immunohistologically, the neoplastic mast cells were positive for serotonin, CD45 vimentin and p53, and negative for lysozyme, CD3 and CD79a expression. The proliferation index of the mast cell tumour based on the Ki-67 antigen was 6.1%. Between the benign neoplastic lipocytes and mastocytoma tumour cells intratumoural microvessels were detected by immunohistochemical staining using CD31 and claudin-5 as markers for vascular endothelium.

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