An unusual case of hematuria caused by a foreign body in the bladder: US and radiologic findings.

The presence of a foreign body in the bladder or urethra is generally the result of autoerotic acts, psychiatric problems, or therapeutic interventions. It can cause hematuria, pain, and abscess formation, which may lead the patient to seek medical care, but the diagnosis is not always easy. This report describes a man who presented with several months' history of hematuria. Ultrasonography revealed a foreign body in the bladder, and the diagnosis was confirmed by abdominal radiography. The object, which was endoscopically removed, proved to be the ceramic sheath of an endoscopic resector that had been used 2 years earlier for transurethral resection of the prostate.