1. Presented by Peter Illei, M.D. and prepared by Kara Judson, M.D.

The patient is an 8 years old boy with a very precocious appearance to his external genitalia and a hard mass involving the majority of the right testis. The left testis appeared to be normal. No adenopathy was identified in the groin or in the supraclavicular, epitrochlear, or axillary regions. There were no palpable abdominal or flank masses present. His serum testosterone was elevated. A right radical orchiectomy was performed. On gross examination in the central portion of the testes a well-circumscribed, 2.5 x 1.6 x 1.5 cm, green-tan round mass was identified that was confined to the testes. The epididymis appeared grossly normal. Six weeks post surgery the patient"s void was already changing and he is become less masculine.

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