Juvenile retention polyps.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003108:Colonic Diseases / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D011127:Polyps / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D012812:Sigmoidoscopy