Short Communication

Extraskeletal osteochondroma on a cat´s elbow

Chantal Rosa, Robert M. Kirberger
Journal of the South African Veterinary Association | Vol 83, No 1 | a104 | DOI: https://doi.org/10.4102/jsava.v83i1.104 | © 2012 Chantal Rosa, Robert M. Kirberger | This work is licensed under CC Attribution 4.0
Submitted: 07 May 2012 | Published: 10 September 2012

About the author(s)

Chantal Rosa, Department of Companion Animal Clinical Studies, University of Pretoria, South Africa
Robert M. Kirberger, Department of Companion Animal Clinical Studies, University of Pretoria, South Africa

Abstract

A solitary extraskeletal osteochondroma was diagnosed in a 6-year-old, castrated male Burmese cat, positive for feline leukaemia virus (FeLV). The cat presented with a rapidly growing, solid, non-painful mass on the craniolateral aspect of the left elbow. Radiographs revealed an oval, well circumscribed 2.0 cm × 1.5 cm × 1.5 cm mineralised mass separated from the underlying bone. Surgical excisional biopsy confirmed the diagnosis. Feline extraskeletal osteochondromas are benign tumours frequently seen in FeLV-positive cats which can transform into osteosarcomas or chondrosarcomas. Radiographically, they cannot be distinguished from a parosteal or an extraskeletal osteosarcoma.

Keywords

cat; elbow; extraskeletal osteochondroma; feline leukaemia virus; radiographs

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