Seminoma com metástase peniana em um cão

Abstract

Testicular neoplasms are common in dogs, especially seminoma. This tumor is formed from germ cells with low metastatic index. Germ cells are those that give rise to sperm, forming in the seminiferous tubules. The aim of this paper is to describe a metastatic seminoma associated with priapism in an adult male unbreded dog (mutt), without castration, presenting as principal symptom priapism for fifteen days. During clinical examination, foreskin edema, congested penile mucosa and a mass at the base of the penis, were observed. Penectomy with scrotal urethrostomy was performed, followed by histopathological analysis. The histopathological examination confirmed the primary seminoma in the testis as well as the metastatic process at the base of the penis. Therefore, clinical and histopathological examinations are fundamental for the diagnostic conclusion of testicular tumors and their metastases, as well as the condition of possible penile metastases should be included in the differential of clinical, surgical and pathological routine.