Transmissible venereal tumor in the cornea of a dog: case report

Abstract

The transmissible venereal tumor (TVT) consists of a round cell neoplasm with great potential for diffusion among dogs, regardless of sex, adults and sexually active. In most cases, the tumor develope itself on the external side of the genitalia of dogs, but it can affect other parts of the body of animals through metastasis or implantation by contact. The neoplasm has no racial predisposition despite the fact that SRD dogs are the most commonly affected. The objective was to describe the care of an adult male dog diagnosed with a transmissible venereal tumor in the cornea of the left eye. The animal arrived at the Veterinary Clinic of PUCPR presenting a new formation of firm consistency and pink appearance, with the presence of granulation tissue, covering the entire left ocular surface and implanted in the region. The diagnosis was made by means of cytology to print in color in the fast panotic and submitted to microscopy that revealed the presence of round tumor cells with scarce cytoplasm and a large rounded nucleus with the presence of mitotics figures at the bottom of the substance. The patient was submitted to chemotherapy by means of Vincristine Sulfate associated with Ivermectin 1% as a potentiating agent of Vincristine antineoplastic effect and immunostimulating drug, in a total of six sessions, achieving total remission of neoplasia and full recovery of the vision of the affected eye. This work demonstrates the importance of diagnosis, the therapy used and the results obtained through antineoplastic therapy.