Testicular neuroblastoma.

We report a case of isolated intratesticular neuroblastoma in a 17-year-old boy with a history of recurrent metastatic neuroblastoma. He had undergone multiple cycles of chemotherapy, and at the time of our examination was apparently disease-free. Testicular metastases are not uncommon in patients with active metastatic neuroblastoma, but isolated testicular involvement is rare. In this case, ultrasound follow-up allowed early diagnosis and prompt treatment of the testicular lesion. At the 18-month follow-up visit, the patient remains disease-free.