A case of severe hemorrhagic cystitis following bone marrow transplantation.

Hemorrhagic cystitis (HC) is a common adverse effect caused by the preparative regimens for bone marrow transplantation. Unfortunately, an effective therapy for HC has not yet been established. Here we report a case of severe HC in which the upper as well as the lower urinary tract were severely affected, resulting in right ureteral obstruction and a contracted bladder. Hyperbaric oxygen therapy was effective in suppressing the severe HC, but the cause of HC could not be identified. Five years after the bone marrow transplantation the patient underwent augmentation ileocystoplasty with ileal ureteral replacement.