SERTOLIOMA MALIGNO EM CÃO NÃO CRIPTORQUIDA: RELATO DE CASO

Abstract

Sertoliom is a neoplasm which occurs in Sertoli cells (supporting cells on semiphers tubers), being the third most common in dogs, and occurring especially in dogs-like cryptoquirds. They behave in a benign way and rarely release metastasis. It has been related one case of malignat sertoliom , from micro-metastasis on the right lung caudal lobe, male dog, no breed, 10 years and 23.5 kg. According to the owner, the animal showed inappetence historic and volume increase in the testicle area, which it had been growing for 3 months. The animal was conducted to surgical treatment, through orchiectomy technique linked with scrotal excision, where it was observed that right testicle showed change and left testicle was stunted. Macroscopically the testicle showed solid consistency, lobed form, smooth copper and dimensions of 7.5 cm length x 6.0 cm width. In the histopathological report, testicle showed semimipher tubers filled by big neoplasm cells, with core varying from oval to elongated, cytoplasm was eosinophilic absent and moderated with indistinct edges. In some areas, cells were forming a solid standard, and in the middle to the tumors large areas of necrosis and bleeding. In X-ray of chest position LL, it had been verified the presence of nodules alteration bigger than 0,5 cm diameter on right caudal lobe being suggestive of micro-metastasis, and in the US right testicle showed 7.12 cm width, homogenous, hyperechoic, hypoechoic focal lesion ( 2.23 diameter and 1.63 width) . The other blood count exams and biochemistry did not show changes. The animal continues to be evaluated e does not show change during the stage of 90 days.