Week 741: Case 1

1. Presented by Dr. Jonathan Epstein and prepared by Dr Yembur Ahmad

History: A 55 year old man underwent a nephrectomy for a mass in the renal pelvis. A low grade noninvasive papillary urothelial carcinoma was noted. In addition, there was a proliferation of urothelial nests which requires a diagnosis.



Choose the correct diagnosis: