The detection of small (diameter 5-12 mm) mucosal jejunal polyps and small (diameter 14-26 mm) submucosal rectal polyps with helical C.T.-scanning in a patient with neurofibromatosis is described. Because a volume is scanned with helical CT, overlapping image reconstructions can be made allowing to produce a contiguous image set for cine mode display. The combination of 'volume scanning' with cine mode display helps in the dynamic visualization of the course of the intestinal loops. This might result in a better depiction of small lesions within the bowels and in a better differentiation between mucosal folds and the lesions.
