RESumEnEn este estudio se evaluaron en forma retrospectiva las características clínicas y patológicas de 155 perras con tumores mamarios. 55% de los animales con tumores mamarios eran Poodle (83 pacientes). La edad promedio al momento de la excisión del tumor fue de 10,3 ± 0,2 años, mientras que el tiempo transcurrido entre la detección del tumor y tratamiento del paciente fue de 308 ± 38,5 días. 46 de las 119 perras habían parido al menos una vez y 22 de 59 habían presentado un historial con falsa preñez. Además, 2% de los animales habían presentado tumores de origen vulvar o vaginal. 212 tumores fueron removidos quirúrgicamente y de ellos, 78,3% eran malignos, 12,3% resultaron benignos, 8% eran cambios hiperplásicos y 1,4% eran tumores no clasificados. No hubo asociación significativa entre el tipo histopatológico de los tumores mamarios y edad, raza, ubicación y duración del tumor, estado reproductivo, historial de preñez o pseudopreñez.
A 16-year-old, spayed, female poodle dog was presented for evaluation of tenesmus, with the ability to attract male dogs and a willingness to mate. The dog had undergone an ovariohysterectomy when it was 7 years old. Haematological and serum biochemistry analyses demonstrated leucocytosis and a mild uraemia. A vaginal smear was predominantly made up of superficial cells, accounting for at least 80% of the cells. Abdominal ultrasonography revealed a heterogeneous multicystic mass at the caudal abdomen and two masses with anechoic areas adjacent to the caudal pole of each kidney. A midline exploratory laparotomy identified a uterine mass and residual ovaries that were surgically excised. Histopathological examination of the mass demonstrated that it was a leiomyoma. The left ovary had a cystic structure and the right ovary had a papillary cystic adenoma. Seven months after the surgery, the owner reported that the dog was clinically normal. To the authors' knowledge, this is the first reported case of a uterine leiomyoma after an incomplete ovariohysterectomy in the dog.
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