A 72-year-old man presented with left scrotal swelling. The patient was diagnosed with left testicular hydrocele and underwent the hydrocele aspiration. However, it recurred within a short period. Magnetic resonance imaging (MRI) revealed a tumor in the epididymis and the patient then underwent left high orchiectomy. The histopathological examination revealed an adenocarcinoma of the epididymis. Ten months after the surgery, the patient has been free of disease.
Keywords: adenocarcinoma of the epididymis; hydrocele.