Testicular Mixed Yolk Sac Tumor and Teratoma

**Semantic type:** Neoplastic Process

**Definition:** A malignant non-seminomatous germ cell tumor arising from the testis. It is characterized by a mixture of yolk sac and teratomatous morphologic elements. Patients may present with painless or painful testicular swelling.

**Synonyms:** - Mixed Endodermal Sinus Neoplasm and Teratoma of Testis - Mixed Endodermal Sinus Neoplasm and Teratoma of the Testis - Mixed Endodermal Sinus Tumor and Teratoma of Testis - Mixed Endodermal Sinus Tumor and Teratoma of the Testis - Mixed Yolk Sac Neoplasm and Teratoma of Testis - Mixed Yolk Sac Neoplasm and Teratoma of the Testis - Mixed Yolk Sac Tumor and Teratoma of Testis - Mixed Yolk Sac Tumor and Teratoma of the Testis - Testicular Mixed Endodermal Sinus Neoplasm and Teratoma - Testicular Mixed Endodermal Sinus Tumor and Teratoma - Testicular Mixed Yolk Sac Neoplasm and Teratoma