If the condition does not improve, the risk of death is significant. In case of poor response to conservative therapy, a colectomy is usually required.
picture of Megacolon
symptom of Hiatal hernia
symptom of Necrotizing enterocolitis
symptom of Hirschsprung's disease
picture of Diverticulitis
symptom of Intussusception 
complications of Intussusception 
symptom of Klippel–Feil syndrome