[Incidental inverted papilloma during the clinical follow-up of superficial transitional cell carcinoma in the urinary bladder].

A 76-year-old woman presented with gross hematuria. She had received transurethral resections (TURBT) twice for superficial bladder tumors near the right orifice. All pathologic findings demonstrated low grade superficial transitional cell carcinoma (TCC). Cystoscopy showed the tumor lesions during the follow-up. Bladder tumors were completely harvested and pathologic examination revealed inverted papilloma. However, recurrent tumors were detected at the same location after 4 months' follow up. Although she came to our hospital for the purpose of TURBT, she complained of severe neck pain and was suddenly dead. Autopsy findings showed that dissecting aortic aneurism was the cause of death and the bladder tumor was low grade superficial TCC. The case reported here had a very rare pathologic finding with a history of superficial tumors located in the same areas in the urinary bladder.