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.

Sertolioma em cão com testículo ectópico: achados clínicos, hematológicos, ultrassonográficos e histopatológicos / Sertolioma in a dog with ectopic testis: clinical, hematological, ultrasonographic and histopathological findings

Sertoliomas are among the most common testicular neoplasms in dogs, and one of its main risk factors is disorders in the process of testicular dehiscence, which causes the retention of one or both testicles out of the scrotum. Thus, the present study aims to report a case of a tumor of Sertoli cells (Sertolioma) in an ectopic testicle in the right inguinal region in an SRD dog at Hospital Veterinário Sylvio Barbosa Cardoso, of the State University of Ceará. A 5-year-old, non-neutered male canine, SRD, weighing 18 kg, came to attend an increase in the right inguinal region. On physical examination, the presence of a firm mass located in the subcutaneous tissue in the right inguinal region was identified, in addition to absence of right testicle in the scrotal pouch and a left testicle decreased in size and with softened consistency. In ultrasound evaluation, the left testicle was located in usual topography, with regular contours and standard echogenicity. In the right inguinal region, an echogenic image of heterogeneous echotexture was perceived, indicating the presence of an ectopic testis. After bilateral orchiectomy, both parts were referred for histopathological analysis, presenting a benign Sertolioma in the ectopic testis and testicular degeneration in the topical testicle was reported. The case reinforces the importance of bilateral orchiectomy and ultrasound for abdominal and gonadal evaluation of non-neutered males.

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)

Sertolioma em cão com testículo ectópico: achados clínicos, hematológicos, ultrassonográficos e histopatológicos / Sertolioma in a dog with ectopic testis: clinical, hematological, ultrasonographic and histopathological findings

Sertoliomas are among the most common testicular neoplasms in dogs, and one of its main risk factors is disorders in the process of testicular dehiscence, which causes the retention of one or both testicles out of the scrotum. Thus, the present study aims to report a case of a tumor of Sertoli cells (Sertolioma) in an ectopic testicle in the right inguinal region in an SRD dog at Hospital Veterinário Sylvio Barbosa Cardoso, of the State University of Ceará. A 5-year-old, non-neutered male canine, SRD, weighing 18 kg, came to attend an increase in the right inguinal region. On physical examination, the presence of a firm mass located in the subcutaneous tissue in the right inguinal region was identified, in addition to absence of right testicle in the scrotal pouch and a left testicle decreased in size and with softened consistency. In ultrasound evaluation, the left testicle was located in usual topography, with regular contours and standard echogenicity. In the right inguinal region, an echogenic image of heterogeneous echotexture was perceived, indicating the presence of an ectopic testis. After bilateral orchiectomy, both parts were referred for histopathological analysis, presenting a benign Sertolioma in the ectopic testis and testicular degeneration in the topical testicle was reported. The case reinforces the importance of bilateral orchiectomy and ultrasound for abdominal and gonadal evaluation of non-neutered males.(AU)