Testicular Yolk Sac Tumor, Postpubertal-Type

**Semantic type:** Neoplastic Process

**Definition:** Testicular yolk sac tumor that is associated with germ cell neoplasia in situ and usually occurs as a component of mixed germ cell tumor. Pure postpubertal-type testicular yolk sac tumor is exceedingly rare.

**Synonyms:** - Postpubertal Type Testicular Yolk Sac Tumor - Postpubertal-Type Testicular Yolk Sac Tumor - Testicular Yolk Sac Tumor, Postpubertal Type