Paratesticular Metastasis of High Grade Prostate Cancer Clinically Mimicking Hemato/Pyo-hydrocele

Secondary metastatic lesions of the testicles are very rare and they originate mainly from prostate adenocarcinoma. They are generally diagnosed incidentally, however, they very rarely manifest as a palpable testicular mass. In this paper, we present, a case of paratesticular metastasis from high-grade prostate cancer clinically mimicking pyo-/hemato-/hydrocele. A 75-year-old man, who had been followed up elsewhere for a huge hydrocele based on scrotal Doppler ultrasonography and scrotal magnetic resonance imaging reporting no suspicion for malignancy, but a pyo-/hemato-/hydrocele was determined to have testicular metastasis originating from prostate adenocarcinoma.