A 34-year-old man with an extensive medical history received a CT scan for chronic leg and back pain. Imaging revealed a single, enhancing 8-cm mass in the upper pole of the right kidney. Laparoscopic radical nephrectomy was performed and pathologic finding revealed seminoma. Scrotal ultrasound and subsequent right orchiectomy also revealed seminoma. We discuss the occurrence of renal metastasis in seminoma.
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