Morphoathological Description of an Extra Genital Canine Transmissible Venereal Tumor

Year 2017, Volume: 43 Issue: 1, 74 - 76, 01.01.2017

Ghasem Farjanıkısh

https://doi.org/10.16988/iuvfd.266473

Abstract

    The transmissible venereal
tumor (TVT) is a contagious and sexually transmissible neoplasia of unknown origin.
In natural conditions the tumor mainly affects the external genitalia of both
male and female dogs. A 6- year old male German shepherd dog, weighing 16 kg
was presented for evaluation of a mass on the nasal cavity which the owner had
noticed 2 months ago. Clinical examination revealed multiple nodular ulcerated
lesions of varying sizes from 1 to 3 cm in diameter over the nasal cavity. The
tumor mass had a firm consistency, was hyperemic and ulcerated.
Histopathological examination showed uniform-sized dense cells arranged in
solid sheets and clusters interlaced by a little connective-tissue stroma. The
cells were round and ovoid, with a moderate amount of cytoplasm that was either
clear or finely granular and had a large nuclear/ cytoplasmic ratio. On the
basis of the clinicopathological findings, this mass was diagnosed as a
transmissible venereal tumor.

Keywords

Dog, nasal cavity, transmissible venereal tumor

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