cases, testis Week 409: Case 6 April 26, 2023 pathadmin 1. Presented by Jonathan Epstein, M.D. and prepared by Hillary Ross, M.D.A 23 year old male had a history of embryonal carcinoma on the right testis. The left testis on follow-up showed a radiologic abnormality and a left testicular biopsy was performed. Intratubular germ cell neoplasiaSertoli cell only pattern involving half of the seminiferous tubulesIntratubular embryonal carcinoma 1. Presented by Jonathan Epstein, M.D. and prepared by Hillary Ross, M.D.A 23 year old male had a history of embryonal carcinoma on the right testis. The left testis on follow-up showed a radiologic abnormality and a left testicular biopsy was performed.