Leydigocitoma canino: aspectos ultrassonográficos, citológicos e histopatológicos / Canine Leydigocitoma: ultrasonographic, cytological and histopathological aspects

In non-neutered dogs, the testis is the second most common site for development of neoplasms, frequently occurring in elderly animals and with orchiectomy as main treatment. Regarding the great relevance of testicular disorders and the importance of accurate diagnoses, this study aims to report a case of canine leydigocytoma at the Veterinary Hospital in the State University of Ceará. The 10-years-old non-neutered Pitbull-breed animal was attended presenting hematuria and, physical examination showed a bilateral nodular formation in testicles in addition to an enlarged prostate. In ultrasonographic examination, the prostate was enlarged, presenting irregular shape and heterogeneous echotexture. These changes indicate the presence of prostatic hyperplasia. Both testicles presented well-defined hypoechogenic regions with evident marginal and internal vascularization, which indicate neoplastic neoformation. In cytology, a hypercellular epithelial sample was observed with cellular modifications suggestive of interstitial cell neoplasia. In the lab, macroscopically, the testis showed multiple soft, well-defined, white-colored to brownish nodules. Histopathology revealed neoplastic proliferation of Leydig cells, sustained by moderate fibrovascular stroma, with degenerated adjacent parenchyma and without signs of malignancy. Four months after orchiectomy, the prostate turned to normal dimensions, with no further ultrasonographic changes. This case reinforces the importance of bilateral orchiectomy and ultrasound for prostatic abnormalities and testicular neoplasms. The association of these conditions is not commonly described in the literature, being an important contribution in this regard.

Leydigocitoma canino: aspectos ultrassonográficos, citológicos e histopatológicos / Canine Leydigocitoma: ultrasonographic, cytological and histopathological aspects

In non-neutered dogs, the testis is the second most common site for development of neoplasms, frequently occurring in elderly animals and with orchiectomy as main treatment. Regarding the great relevance of testicular disorders and the importance of accurate diagnoses, this study aims to report a case of canine leydigocytoma at the Veterinary Hospital in the State University of Ceará. The 10-years-old non-neutered Pitbull-breed animal was attended presenting hematuria and, physical examination showed a bilateral nodular formation in testicles in addition to an enlarged prostate. In ultrasonographic examination, the prostate was enlarged, presenting irregular shape and heterogeneous echotexture. These changes indicate the presence of prostatic hyperplasia. Both testicles presented well-defined hypoechogenic regions with evident marginal and internal vascularization, which indicate neoplastic neoformation. In cytology, a hypercellular epithelial sample was observed with cellular modifications suggestive of interstitial cell neoplasia. In the lab, macroscopically, the testis showed multiple soft, well-defined, white-colored to brownish nodules. Histopathology revealed neoplastic proliferation of Leydig cells, sustained by moderate fibrovascular stroma, with degenerated adjacent parenchyma and without signs of malignancy. Four months after orchiectomy, the prostate turned to normal dimensions, with no further ultrasonographic changes. This case reinforces the importance of bilateral orchiectomy and ultrasound for prostatic abnormalities and testicular neoplasms. The association of these conditions is not commonly described in the literature, being an important contribution in this regard.(AU)

Seminoma e sertolioma em cão criptorquida: relato de caso / Seminoma and sertolyoma diseases in criptorquida dog: case report

Tumores testiculares são neoplasias de genitália muito comuns em cães, aparentando estar fortemente relacionados ao criptorquidismo. O presente trabalho tem como objetivo relatar um caso de tumores testiculares em um cão de quatro anos com criptorquidia, que apresentou aumento de volume na região inguinal direita, sinais de feminização associado à anemia normocítica enormocrômica. O exame histopatológico concluiu tratar-se de seminoma e sertolioma. Após dois meses da orquiectomia bilateral, o cão teve regressão das manifestações clínicas.(AU)

Testicular tumors are some very common sort of genitalia neoplasie in dogs, appearing tobe strongly related to cryptorchidism. This article aims to report a case of testicular tumor in a four years old dog with cryptorchidism, that presented an increased volume in the right inguinal region,signs of feminization associated to normocytic and normochromic anemia. The histopathological test concluded that the case was referred to a seminoma and sertolyoma diseases. After two months of bilateral orchiectomy, the clinical symptoms were eliminated from the dog.(AU)

Seminoma e sertolioma em cão criptorquida: relato de caso / Seminoma and sertolyoma diseases in criptorquida dog: case report

Tumores testiculares são neoplasias de genitália muito comuns em cães, aparentando estar fortemente relacionados ao criptorquidismo. O presente trabalho tem como objetivo relatar um caso de tumores testiculares em um cão de quatro anos com criptorquidia, que apresentou aumento de volume na região inguinal direita, sinais de feminização associado à anemia normocítica enormocrômica. O exame histopatológico concluiu tratar-se de seminoma e sertolioma. Após dois meses da orquiectomia bilateral, o cão teve regressão das manifestações clínicas.

Testicular tumors are some very common sort of genitalia neoplasie in dogs, appearing tobe strongly related to cryptorchidism. This article aims to report a case of testicular tumor in a four years old dog with cryptorchidism, that presented an increased volume in the right inguinal region,signs of feminization associated to normocytic and normochromic anemia. The histopathological test concluded that the case was referred to a seminoma and sertolyoma diseases. After two months of bilateral orchiectomy, the clinical symptoms were eliminated from the dog.