Abstract
A 60-year-old male was admitted with abdominal pain, abdominal distension, and vomiting ; ileus was diagnosed. The CT scan revealed stenosis in the descending colon, and ileus caused by colon cancer was suspected, but on endoscopy, no tumor was found in the colon. Barium enema radiography demonstrated a narrow sigmoid-descending colon segment. The ileus did not improve with conservative therapy. At laparotomy, operative findings revealed a narrow colon segment, and sigmoidectomy was performed. On histology, a remarkable reduction in the number of ganglion cell of Auerbach's and Meissner's plexuses was noted in the segment ; ileus related to adult segmental hypoganglionosis of the colon was diagnosed. Few cases of adult segmental hypoganglionosis have been reported, and we present this case with a review of the literature.