Chronic intussussception of Meckel's diverticulum.
D000293:Adolescent; D002908:Chronic Disease; D006801:Humans; D007443:Intussusception / Q000000981:diagnostic imaging / Q000209:etiology*; D008297:Male; D008467:Meckel Diverticulum / Q000150:complications* / Q000000981:diagnostic imaging; D011859:Radiography