title: Colonic retention syndrome (megacolon) associated with immaturity of intestinal intramural plexus.
mesh_terms: D003672:Defecation; D006801:Humans; D007231:Infant, Newborn; D008470:Meconium; D008531:Megacolon / Q000209:etiology* / Q000473:pathology; D009197:Myenteric Plexus / Q000254:growth & development / Q000473:pathology / Q000503:physiopathology*; D009474:Neurons