Gastrointestinal bleeding as a manifestation of von Recklinghausen's disease of the skin.
D004379:Duodenal Neoplasms / Q000150:complications* / Q000601:surgery; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D007413:Intestinal Mucosa; D008875:Middle Aged; D009456:Neurofibromatosis 1 / Q000150:complications* / Q000601:surgery; D009461:Neurologic Manifestations; D012878:Skin Neoplasms / Q000150:complications*