Tumor venéreo transmissível canino em laringe com metástase pulmonar / Canine transmissible venereal tumor in the larynx with pulmonary metastasis
Acta sci. vet. (Impr.)
; 50(suppl.1): Pub.764-4 jan. 2022. ilus
Article
em Pt
| VETINDEX
| ID: biblio-1458572
Biblioteca responsável:
BR68.1
Localização: BR68.1
ABSTRACT
Background:
Canine transmissible venereal tumor (TVT) is one of the most common canine neoplasms in Brazil. Lesions develop mainly in the genital tissue and less frequently in other areas, in the extragenital form. Metastasis is rare, and the disease progression depends on the patients immune status. The treatment of choice is chemotherapy with vincristine sulfate, considered an effective and safe modality. The present work describes the first case of extragenital TVT in the larynx with pulmonary metastasis at the time of diagnosis. Case An approximately 4-month-old mixed-breed bitch was attended manifesting acute clinical respiratory signs. The patient had been rescued from the street 2 months beforehand. Physical examination revealed pale mucous membranes and crackling pulmonary auscultation. Thoracic radiography was performed in 3 projections, showing multiple nodules in the lung parenchyma, followed by cytopathological examination using fine needle puncture guided by thoracic ultrasound, confirming the diagnosis of TVT. Considering the cytological finding and the absence of primary tumor lesions in the genital, oral, cutaneous or nasal regions, endoscopy was performed in order to locate a possible primary focus. The exam revealed a small erythematous tumor with smooth and regular surface, measuring approximately 2.5 cm, located in the larynx, between the arytenoid cartilages. Chemotherapy was performed with vincristine sulfate with radiographic follow-up throughout the treatment. Full remission of the pulmonary and laryngeal nodules was achieved at the end of the protocol. The animal remained in complete remission for a period of 2 years.Discussion:
TVT is more frequently observed in animals of active reproductive age, and rarely in animals under 1 year of age, as in the case...Palavras-chave
Texto completo:
1
Base de dados:
VETINDEX
Assunto principal:
Tumores Venéreos Veterinários
/
Neoplasias Laríngeas
/
Neoplasias Pulmonares
/
Metástase Neoplásica
Limite:
Animals
Idioma:
Pt
Revista:
Acta sci. vet. (Impr.)
Ano de publicação:
2022
Tipo de documento:
Article