label: Testicular Mixed Embryonal Carcinoma and Yolk Sac Tumor
label_lc: testicular mixed embryonal carcinoma and yolk sac tumor
description: "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."