[Inverted papilloma of the urinary bladder]

The inverted papilloma is relatively rare urothelial benign tumor. In 1980 was described only 108 cases of this benign proliferative lesions of bladder. Papillary fronds project into the fibrovascular stroma of the bladder rather than into the bladder lumen. The lesion is usually covered by a thin layer of normal urothelium. In Our case, tumor was found during the open adenomectomy, although patient was examined by ultrasound, before surgical treatment. One year after surgical treatment, control cystoscopic examine shows no recidive benign lesion.