title: Chronic hematuria and localized bladder damage following combined cyclophosphamide and local radiotherapy.
abstract: A 13-year-old white male had Ewing sarcoma of the right pubic and ischial bones. Initial therapy consisted of 5,400 rads in seven weeks to the right side of the pelvis and 14 intravenous injections of cyclophosphamide (Cytoxan, CTX) at 500 mg/m2; BCNU and Adriamycin maintenance therapy continued for a total of two years. He has now been disease-free for five years. Three months following the completion of the right pelvic radiotherapy (RT), while on intravenous CTX, severe hematuria appeared, which subsided, but at present he has continuous microscopic hematuria, as well as periodic episodes of gross hematuria. Serial cystocopies initially revealed thickening and hemorrhagic and edematous changes on the right (irradiated) side of the bladder, and recent multiple telangiectatic patches have been demonstrated as a late "healing" phase. This case demonstrates the additive toxicity to the bladder of CTX and RT, illustrating that the hemorrhagic cystitis can be extremely protracted lasting five years.
mesh_terms: D000293:Adolescent; D001859:Bone Neoplasms / Q000628:therapy; D003520:Cyclophosphamide / Q000008:administration & dosage / Q000009:adverse effects*; D003556:Cystitis / Q000209:etiology*; D006417:Hematuria / Q000209:etiology*; D006801:Humans; D008297:Male; D010384:Pelvic Bones; D011878:Radiotherapy / Q000009:adverse effects*; D012512:Sarcoma, Ewing / Q000628:therapy; D013997:Time Factors
chemical_list: D003520:Cyclophosphamide