Abstract
Eosinophilic cystitis is an unusual disease more commonly encountered in patients with allergic diatesis. Frequently it is accompanied by symptoms such as dysuria, frequency, suprapubic pain and hematuria. Rarely it can form space occupying lesions of the bladder and can be confused with bladder tumors. We report an eosinophilic cystitis case incidentally detected in a 55-year-old asymptomatic female patient with a radiological appearance mimicing a bladder tumor.