cases Week 788: Case 3 June 28, 2023 eyoung50 1. Case presented by Dr. Jonathan Epstein and prepared by Dr. Eric Young. Case History: A 28 year-old man underwent an orchiectomy for a 4.2 cm. testicular mass. Diagnosis?Predominantly immature teratoma with focal mature teratomaPredominantly yolk sac tumor with focal teratomaPredominantly teratoma with focal embryonal carcinomaPredominantly yolk sac tumor with focal embryonal carcinoma and teratoma Loading...