Neurofibroma of the ureter.

We report a case of neurofibroma of the ureter without other clinical signs of von Recklinghausen's neurofibromatosis. The patient presented with flank pain, and excretory urography, retrograde urography and computerized abdominal tomography demonstrated a ureteral mass. The light and electron microscopic characteristics, as well as the histogenesis of ureteral neurofibroma, are discussed.