Intraluminal colonic calcifications associated with anorectal atresia: Prenatal sonographic detection

Intra-abdominal meconium calcifications in the fetus can be detected with sonography.^1-3 Fetal peritoneal calcifications are usually related to meconium peritonitis secondary to bowel performation; intraluminal calcifications (enterolithiasis) are relatively rare but are often associated with bowel obstruction.(2,3) Sonographic characteristics clearly reveal the presence of calcified meconium and may distinguish intraluminal from peritoneal foci. The following is a report of two cases of prenatal detection of calcified intraluminal meconium associated with anorectal atresia. Sonographic signs useful in the antenatal diagnosis of enterolithiasis are described. To our knowledge, these have not been previously reported.