Carcinoma mamária de células fusiformes em uma cadela

Abstract

Mammary tumors are common in female dogs, and can reach more than one mammary gland. Spindle cell carcinoma is a malignant neoplasm, uncommon in female dogs. The aim of this report is to describe a spindle-cell mammary carcinoma in an eight-year-old female German Shepherd dog, weighing 22.4 / kg. It was presented for care, the main increase in volume in the mammary gland. Physical and complementary exams were performed. No physical examination was palpated a mass in the mammary gland of the inguinal region with ulcerations. No blood count in the patient had normochromic normocytic anemia, thrombocytosis, neutrophilia leukocytosis, monocytosis, and eosinophilia. Serum biochemistry (Creatinine and Alanine aminotransferase) results within the normal range. Radiographic examination of the abdomen increases tissue enlargement in the inguinal region. measuring 12,83cm. No ultrasound examination was observed in the right inguinal breast mass with heterogeneous, hyperechoic image measuring 6.29 cm, with small cavity areas and gas inside. The animal underwent ovarian hysterectomy (OH) and right unilateral mastectomy. A surgical specimen (right breast chain) was referred for histopathological diagnosis, which resulted in spindle cell mammary carcinoma. The report described a type of breast cancer that added information to the literature that is very restricted, reinforcing the importance of histopathological examination for the establishment of diagnosis, as well as for the need for adjunctive therapy and evaluation or prognosis.