cases, kidney Week 413: Case 3 April 26, 2023 pathadmin 1. Presented by Peter Illei, M.D. and prepared by Alex Chang, M.D.67 y.o. white female patient with 14 cm left kidney mass. Mixed epithelial and stromal tumor of kidneyCystic nephromaCystic renal cell carcinomaPolycystic kidney disease 1. Presented by Peter Illei, M.D. and prepared by Alex Chang, M.D.67 y.o. white female patient with 14 cm left kidney mass.