bladder, cases Week 160: Case 1 April 26, 2023 pathadmin 1. Presented by Jonathan Epstein, M.D. and prepared by Sharon Swierczynski, M.D., Ph.D.68-year-old male with a bladder massInfiltrating poorly differentiated urothelial carcinoma with rhabdoid differentiationInfiltrating poorly differentiated carcinoma with squamous differentiationInfiltrating poorly differentiated urothelial carcinoma with plasmacytoid differentiationLarge cell undifferentiated carcinoma 1. Presented by Jonathan Epstein, M.D. and prepared by Sharon Swierczynski, M.D., Ph.D.68-year-old male with a bladder mass