Epidemiological study of canine mammary tumorsage, breed, size and malignancy

  1. Nieves Pastor
  2. Nuria C. Caballé
  3. Massimo Santella
  4. Luis Javier Ezquerra
  5. Raquel Tarazona
  6. Esther Duran
Revista:
Austral journal of veterinary sciences

ISSN: 0719-8000 0719-8132

Año de publicación: 2018

Volumen: 50

Número: 3

Páginas: 143-147

Tipo: Artículo

DOI: 10.4067/S0719-81322018000300143 DIALNET GOOGLE SCHOLAR lock_openAcceso abierto editor

Otras publicaciones en: Austral journal of veterinary sciences

Resumen

Abstract: A retrospective study was carried out on 858 female canine patients who were attended at the Surgery Service of the Clinical Veterinary Hospital of the University of Extremadura (Spain), during a period of 5 years (2008-2012). This study aims to determine the incidence of mammary tumors in the canine species of this region together with the analysis of several epidemiological variables (breed, age, and size) and the histopathological variable tumor malignancy. Three groups of patients were considered: (I) general group including all patients (n=858), (II) oncological patients (n=376), and (III) patients with mammary tumors (n=227). Oncology represented the most common pathology for female dogs (n=376, 43.82%), with mammary tumors being the most frequent neoplasms (n=227, 60.37%). Mixed breed dogs were more likely than purebred dogs to suffer from mammary tumors, with these tumors being more frequently malignant. It was also found that large-sized patients show a greater predisposition to malignant mammary tumors. In patients with tumors, age at diagnosis was significantly associated with a higher malignancy rate. The results of the study confirm the importance of oncology in the veterinary clinic in the region. Mammary tumors represent the most frequently diagnosed neoplasia in female dogs. Old age, mixed breed and large size predispose to its development and represent risk factors for malignancy.

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