Intraluminal calcifications were found in the small bowel of 4 newborns with total colonic aganglionosis. Abdominal radiography demonstrated circular aggregations of small punctate calcific densities in the right lower quadrant and evidence of bowel obstruction. There was a microcolon in each case. The calcifications, which resemble those seen in small intestinal atresia and stenosis, are probably related to fetal intestinal stasis, and may be differentiated from those due to meconium peritonitis.