LEYDIG-CELL HYPERPLASIA MIMICKING TESTICULAR NEOPLASM

Patients with extragonadal seminoma are at high risk of developing a p rimary testicular neoplasm many years after the initial diagnosis and therapy. Therefore, long-term follow-up is critical in the proper mana gement of these patients. We present the first case of Leydig cell hyp erplasia, mimicking a testicular neoplasm, 21 years after diagnosis an d treatment of extragonadal seminoma.