[Rare seminoma metastasis to the corpus spongiosum and urethra].

Anaplastic seminomas account for 5-10% of all seminomas. Their metastatic pattern is similar to the classic form of seminoma. We report on an oligophrenic patient with seminoma pT1 who developed a metastasis to the corpus spongiosum and penile urethra, which was successfully treated by local external radiotherapy resulting in long-term tumor remission over a 4-year follow-up period.