bladder Week 778: Case 2 June 19, 2023 kfomche1 1. Cases presented by Dr. Jonathan Epstein and prepared by Dr. Katherine Fomchenko. A 48 year-old man underwent a transurethral resection of a bladder mass. A. Non-invasive low grade papillary urothelial carcinoma with inverted patternB. Papillary urothelial neoplasm of low malignant potential (PUNLMP) with inverted patternC. Inverted papillomaD. Florid proliferation of von Brunn nests Loading...