Figure 8a. Ileal plexiform neurofibromas discovered in a routine pelvic examination of a 40-year-old asymptomatic woman with NF1. (a) Image from a small bowel barium study shows irregular narrowing of a long segment of distal ileum caused by intramural and intraluminal neurofibromas. The affected segment of ileum is displaced into the pelvis and separated from adjacent segments of intestine. (b) Intravenous contrast-enhanced CT scan shows homogeneous circumferential mural thickening (arrows) of the involved ileal segment. (c) Photograph of the opened resected ileum shows multiple intraluminal polypoid nodules of varying size on the mucosal surface.