Ultrasonic Localization of a Non-Palpable Testis Tumor

Abstract
A young man was found to have a retroperitoneal seminoma and normal testicles by palpation. Initial diagnosis was an extratesticular primary germ cell tumor until ultrasound examination detected a lesion in the left testicle. A left radical orchiectomy was done and a seminoma of the testicle was found. We recommend ultrasound examination of the testicles to demonstrate occult testicular tumors when faced with the possibility of an extratesticular primary germ cell tumor.

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