label: Malignant Mediastinal Nongerminomatous Germ Cell Tumor
label_lc: malignant mediastinal nongerminomatous germ cell tumor
description: "An extragonadal nongerminomatous malignant germ cell tumor that arises from the mediastinum.  This category includes embryonal carcinoma, yolk sac tumor, choriocarcinoma, and mixed germ cell tumors."