A rare case of ovarian teratoma in a 15-year-old labrador bitch

A 15-year-old female labrador dog with history of anorexia and abdominal swelling was admitted to Veterinary Clinical Campus, Veterinary College and Research Institute, Orathanadu Thanjavur, Tamil Nadu. On radiographical examination a hypoechoic mass noticed on abdominal cavity and during surgery a large tumour mass in the left ovary was removed. Grossly, the ovarian mass was encapsulated with 2.5 kg weight and showed red, firm, and irregular nodular appearance on the surface. On cut section, the mass showed the presence of few cystic spaces, white hair fibers and more solid tissues. Histopathologically, ovarian mass revealed the presence of skin keratocyst, hair follicle, sebaceous gland, cartilage, osseous foci with adipose tissue, choroid plexus, nerve, neuropil tissue of brain, and ovarian follicle. Based on histopathological examination, the present case was diagnosed as ovarian teratoma in a 15-year-old labrador bitch.