Malignant teratoma 32 years after treatment of germ cell tumor confined to testis.

After the first 2 years of follow-up, the prognosis of testicular cancer confined to the testis is traditionally considered excellent. We report on a man who presented with a psoas mass, corresponding to a very late relapse of his left testicular cancer initially confined to the testis and confirmed by negative retroperitoneal lymph node dissection. Histologic analysis of the mass revealed malignant teratoma. The patient's history was remarkable because of the very long interval to relapse (32 years) associated with this malignant teratoma. This clinical case illustrates the possibility of late relapses throughout life, whatever the initial stage.