Parasitic duodenitis.

Sixty-two patients presenting with upper abdominal pain of the non-ulcer dyspepsia type, and radiological signs of duodenitis, were investigated for parasites; biopsies of the duodenum were performed, both by capsule and by endoscopy. The findings were compared with a group of 18 healthy controls with and without parasites. The group of 36 patients with parasites showed a significant degree of inflammatory infiltrate compared to the non-parasitized patients and to the control group.