Presentation of CaseA 14-year-old girl was admitted to the hospital because of recurrent rectal bleeding.She had been in excellent health until three years earlier, when she began to pass blood-tinged stools. The bleeding increased during the course of several days. A proctosigmoidoscopic examination showed no abnormality. Hydrocortisone enemas were followed by the cessation of bleeding. She was then well until 45 days before admission, when her stools again became blood-tinged, and she later passed frank blood rectally. A colonoscopic examination did not reveal the source of the bleeding. Hematochezia continued. Twenty-seven days before admission, the results of an . . .
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Colletti et al. (1997) studied this question.
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