Intussusception Mimicking Rectal Prolapse in a 5-Month-Old Infant

Although rare, an ileocolic intussusception extending to the rectum can mimic a rectal prolapse, which may result in delayed diagnosis and treatment, thereby increasing morbidity in affected infants. Anal prolapse of an ileocolic intussusception is a rare complication of intussusception and more rarely reported in the United States than in developing countries. The aim of this case report is to identify physical exam techniques and radiological findings to distinguish between an anal prolapse intussusception versus a rectal prolapse. There needs to be a high index of suspicion of intussusception in presenting patients with a rectal prolapse in order to minimize morbidity.