Juvenile polyps of the colon and rectum.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003110:Colonic Neoplasms / Q000453:epidemiology*; D005202:Asia, Eastern; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D011127:Polyps / Q000453:epidemiology*; D012004:Rectal Neoplasms / Q000453:epidemiology*