label: Testicular Mixed Teratoma and Yolk Sac Tumor, Prepubertal-Type
label_lc: testicular mixed teratoma and yolk sac tumor, prepubertal-type
description: A very rare testicular germ cell tumor that combines teratoma and yolk sac tumor. It usually affects young children. It is not associated with chromosome 12p amplification or germ cell neoplasia in situ.