Liposarcoma in animals

Author:

Doria-Torra Georgina1234,Martínez Jorge1234,Domingo Mariano1234,Vidaña Beatriz1234,Isidoro-Ayza Marcos1234,Casanova María Isabel1234,Vidal Enric1234

Affiliation:

1. Departament de Sanitat i Anatomia Animals (Doria-Torra, Martínez, Domingo, Vidaña, Isidoro-Ayza, Casanova), Bellaterra, Barcelona, Spain

2. Servei de Diagnòstic de Patologia Veterinària (Doria-Torra, Martínez, Domingo, Isidoro-Ayza, Casanova), Bellaterra, Barcelona, Spain

3. Universitat Autònoma de Barcelona (UAB), Bellaterra, Barcelona, Spain

4. Centre de Recerca en Sanitat Animal, UAB-IRTA, Bellaterra, Barcelona, Spain (Martínez, Domingo, Vidaña, Vidal)

Abstract

Liposarcomas are malignant tumors of adipocytes. The current report describes a liposarcoma in a 2.5-year-old, mixed-breed commercial sow that was detected during meat inspection. On gross examination, a firm, whitish, multinodular, 20 cm ×10 cm mass was observed in the perirenal area along with smaller nodules multifocally scattered within the renal parenchyma. Histological examination revealed an anaplastic sarcoma with clear intracytoplasmic lipidic vacuoles that were positive for Sudan black staining. Most of the cells were also positive for S100 and vimentin immunohistochemistry. Based on these results, a diagnosis of a perirenal liposarcoma was established. To the authors’ knowledge, no previous reports of liposarcomas in pigs have been published. This report also includes a review of the literature published on animal liposarcomas.

Publisher

SAGE Publications

Subject

General Veterinary

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