A 74-year-old male patient was referred to the urology clinic due to a palpable, painless, rigid mass of his left testicle. A scrotal ultrasound revealed a hypervascular testicular lesion during a color Doppler examination. Testicular tumor markers such as α-fetoprotein, lactate dehydrogenase, and β-human chorionic gonadotropin were within the normal range. Other laboratory findings included normocytic anemia with a hemoglobin of 10.8g/dL (reference
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