ABSTRACT
Eosinophilic cystitis is a rare inflammatory disease of urinary bladder with unknown etiology. The disease is known to be associated with several different processes such as allergy or injury. Eosinophilic cystitis is similar to interstitial cystitis, vesical tuberculosis and bladder neoplasm in clinical manifestations and should be differentiated from them. A 75 years old male patient underwent TUR-P for benign prostatic hyperplasia. After 2 months, he complained of irritative voiding symptoms. Cystoscopy revealed a polypoid mass, measuring 3 cm in diameter in the right lateral wall of bladder. Pathology of the lesion that was transurethrally resected revealed the diffuse eosinophilic infiltration of the bladder wall without evidence of malignancy.
