cases, kidney Week 310: Case 1 April 26, 2023 pathadmin 1. Presented by George Netto, M.D. and prepared by Zarir E. Karanjawala, M.D., Ph.D.A 40 year old man presented with gross hematuria. Imaging studies revealed a 3.5 cm right solid renal mass. A nephrectomy was performed.Renal carcinoid tumorPapillary renal cell carcinoma, type IIMucinous tubular and Spindle cell carcinomaCollecting duct carcinoma 1. Presented by George Netto, M.D. and prepared by Zarir E. Karanjawala, M.D., Ph.D.A 40 year old man presented with gross hematuria. Imaging studies revealed a 3.5 cm right solid renal mass. A nephrectomy was performed.