PRIMARY EXTRAGENITAL OCCURRENCE OF TRANSMISSIBLE VENEREAL TUMORS - 3 CASE-REPORTS

Three cases of extragenital occurrence of transmissible venereal tumor (TVT) without a primary tumor on the genitalia are described. The first involved a young German Shepherd with a large mass completely blocking and deforming the right nasal cavity. In the second case, a 6-year-old, mixed-breed dog presented with a tumor in the right maxillary sinus, causing severe epistaxis and mucopurulent nasal discharge. In the third case, a subcutaneous nodular and ulcerative lesion of the jaw was observed. Histopathological diagnosis of TVT was confirmed in all cases. Intravenous vincristine was administered in Cases 2 and 3, and regression of the tumors occurred in both.