Gastrointestinal hemorrhage due to neurofibromatosis.
D006471:Gastrointestinal Hemorrhage; D041981:Gastrointestinal Tract; D006470:Hemorrhage; D006801:Humans; D017253:Neurofibromatoses / Q000150:complications*; D009456:Neurofibromatosis 1
GASTROINTESTINAL SYSTEM/hemorrhage; NEUROFIBROMATOSIS/complications