bladder, cases Week 436: Case 6 April 26, 2023 pathadmin 1. Presented by Peter Illei, M.D. and prepared by Hillary Ross, M.D.50 y.o. white woman with a small bladder tumor. Her history includes recent biopsy proven organizing pneumonia with a background collagen vascular disease associated chronic lung disease.MalakoplakiaAdenocarcinoma of the bladderRosai-Dorfman diseaseInterstitial (Hunner's) cystitis 1. Presented by Peter Illei, M.D. and prepared by Hillary Ross, M.D.50 y.o. white woman with a small bladder tumor. Her history includes recent biopsy proven organizing pneumonia with a background collagen vascular disease associated chronic lung disease.