Nonspecific small bowel ulceration.
Six patients (4 male, 2 female) developed nonspecific small bowel ulceration between the ages of 4 months and 76 y. Five had gastrointestinal haemorrhage, usually chronic and resulting in iron deficiency anaemia. Four had features of subacute intestinal obstruction; there were no perforations. A small bowel enema was the most useful single investigation for delineating the lesions, and surgical excision was curative in all but one case. No aetiological causes could be implicated, other than in one patient taking a daily tablet of Navidrex-K.