Late recurrence of Seminoma in the pelvis: A case report.

Recurrence of pure seminoma in atypical lymph node sites, such as the pelvis are rare masses that show clinical signs late in disease progression. We report a case of a 73-year-old male that presented with urinary retention and pain in his left lower extremity with a history of right radical orchiectomy and adjuvant radiation for a stage 1 pure seminoma 30 years prior. CT showed a left pelvic mass concerning for malignancy. Patient subsequently underwent surgical excision of mass that pathology identified as recurrence of pure seminoma. This case report emphasizes etiology of pure seminoma and late, contralateral pelvic recurrence.