RT Book, Section A1 Bianchi, Diana W. A1 Crombleholme, Timothy M. A1 D'Alton, Mary E. A1 Malone, Fergal D. SR Print(0) ID 1106399043 T1 Intra-abdominal Calcifications T2 Fetology: Diagnosis and Management of the Fetal Patient, 2e YR 2015 FD 2015 PB McGraw-Hill Education PP New York, NY SN 978-0-07-144201-5 LK obgyn.mhmedical.com/content.aspx?aid=1106399043 RD 2024/03/29 AB Key PointsCauses of intra-abdominal calcification include meconium peritonitis, enterolithiasis, cholelithiasis, and fetus in fetu.Meconium peritonitis is the most common cause of intra-abdominal calcifications.Cystic fibrosis is seen in only 8% to 13.5% of cases of fetal meconium peritonitis in contrast to 15% to 40% postnatally.Enterolithiasis is often associated with rectourinary fistula as in imperforate anus or cloaca.Enterolithiasis can be seen in bowel obstruction such as jejunoileal atresia or total colonic Hirschsprung’s disease.Fetus in fetu is distinguished by the presence of well-formed long bones or vertebral bodies.