Abstract
A 12 years-old intact male Yorkshire Terrier was presented with a complaint of non-inflammatorical, non-pruritic symmetrical alopecia of the trunk, turbidity of urine and dyschezia. Physical examination revealed the enlargement of nipples and prostate gland. Intra-abdominal and subcutaneous inguinal masses were palpated and which were thought to be cryptorchidism. Histopathological findings of a mass in abdomen coinside with Sertoli's cell tumor, those of a mass in subcutaneous inguinal mass indicated a mixed tumor of Sertoli's cell tumor and seminoma. After the complete excision of these masses, clinical signs dissolved. A non-inflammatory, non-pruritic alopecia in this case was considered to be caused by the excessive estrogen from testicler tumors.
