[Eosinophilic cystitis: a report of 2 cases].

Two patients with eosinophilic cystitis are presented in this report. The first case was a 39-year-old man who was admitted to our clinic with complaints of pollakisuria, pain on urination and hematuria for a month, which had not been relieved by antibiotic therapy. He had both a family and a personal past history of allergy. Excretory urograms showed a mild bilateral hydroureter and small bladder with irregular filling defects. Cystoscopic examination revealed velvety, ulcerated areas in the bladder mucosa, and we diagnosed these changes as eosinophilic cystitis after bladder biopsy. Steroid and antihistaminic therapy improved these symptoms. The second case was a 67-year-old woman who visited our clinic complaining chiefly of hematuria for 2 months. There was no predisposition to allergy, but she had a past history of uterine cancer which had been treated with irradiation. Cystoscopic examination disclosed a large amount of intravesical coagula, and erythematous and edematous areas with petechiae of the bladder mucosa. Bladder biopsy revealed hemangioma and eosinophilic cystitis. There was no recurrence of cystitis after the removal of the coagula without any other treatment.