Testicular Mixed Embryonal Carcinoma and Yolk Sac Tumor

**Semantic type:** Neoplastic Process

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

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