[Henoch-Schönlein purpura developed after radical cystectomy].

We report a case of Henoch-Schönlein purpura that developed after radical cystectomy. The patient was a 70-year-old man who visited our hospital with a chief complaint of asymptomatic macroscopic hematuria and was diagnosed with invasive bladder cancer. After providing one course of gemcitabine and cisplatin therapy as neoadjuvant chemotherapy, radical cystectomy was performed.