<prompt> Pneumatosis intestinalis is diagnostic of:Ileal perforationNecrotizing enterocolitisMeconium ileusColonic aganglionosis  <response>: Ans. b Necrotizing enterocolitisRef: Scand J Surg 94 1: 47-50. PMID 15865117In newborns, pneumatosis intestinalis is considered diagnostic for necrotizing enterocolitis, and the air is produced by bacteria in the bowel wall. 