Testicular Mixed Yolk Sac Tumor and Teratoma with Seminoma

**Semantic type:** Neoplastic Process

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

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