Microinvasive germ cell tumors of the testis

We suggest that atypical germ cells in the seminiferous tubules of the testis and the testicular stroma without gross tumor be designated as microinvasive germ cell tumor of the testis. We report on 3 men who underwent orchiectomy for cryptorchid testes and diagnosis was microinvasive testicular germ cell tumor. One patient had an embryonal carcinomatous tumor and 2 had seminomatous tumors. No relapse was observed after more than 10, 28 and 59 months of followup, respectively.