title: Juvenile polyps and ulcerative colitis.
abstract: Four children with ulcerative colitis, three of whom were in clinical remission of their disease, experienced rectal bleeding due to solitary juvenile polyps. Only one of the four polyps was detected radiologically. Two children passed their polyps spontaneously, one was identified at colonoscopy, and the fourth caused colocolic intussusception and was removed during surgery.
mesh_terms: D002648:Child; D002675:Child, Preschool; D003093:Colitis, Ulcerative / Q000150:complications*; D003111:Colonic Polyps / Q000150:complications* / Q000473:pathology; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000209:etiology; D006801:Humans; D008297:Male; D012002:Rectal Diseases / Q000209:etiology