FALSE-NEGATIVE TESTICULAR BIOPSY IN AN EX TRAGONADAL GERM-CELL TUMOR

In 60% of all patients with extragonadal germ cell tumors, testicular biopsy reveals a testicular intraepithelial neoplasia MN). We report a case of a patient with the primary diagnosis of extragonadal seminoma in whom an initial testicular biopsy was unremarkable. 14 weeks later a solid tumor in the left testicle was detected and proved to be a '' burnt-out'' seminoma. Follow-up of patients with extragonadal germ cel l tumors should include careful examination of the testicles even if i nitial biopsies were negative.