title: Graded compression sonography of the colon in the diagnosis of polyps in pediatric patients.
abstract: OBJECTIVE
  We report seven cases of juvenile polyps detected by graded compression gray-scale and color Doppler sonography in five children with nonspecific symptoms.
  
  
  CONCLUSIONS
  Intestinal polyps can be detected by graded compression gray-scale and color Doppler sonography without colonic preparation. On gray-scale sonography, polyps appeared as spherical or ovoid hypoechoic nodules in the colon lumen. Small cysts were identified inside the nodules. Four polyps had fewer and smaller cysts, whereas three others contained many cysts. A hyperechoic layer surrounding the polyp corresponded to the submucosa. In two patients, the polyp was visualized in the transverse colon and caused a colocolic intussusception, which reduced spontaneously during sonography. Color Doppler sonography showed four hypovascularized and three hypervascularized polyps.
authors.affiliation: Departamento de Ultra-sonografia, Hospital São Lucas, Pontifícia Universidade Católica do Rio Grande do Sul, Av. Ipiranga, 6690 Porto Alegre, RS, Brazil, CEP 90610-000.
authors.forename: Matteo
authors.initials: M
authors.lastname: Baldisserotto
authors.forename: José Vicente Noronha
authors.initials: JV
authors.lastname: Spolidoro
authors.forename: Maria da Graça Soares
authors.initials: Mda G
authors.lastname: Bahú
mesh_terms: D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D003106:Colon / Q000098:blood supply / Q000000981:diagnostic imaging* / Q000473:pathology; D003111:Colonic Polyps / Q000000981:diagnostic imaging* / Q000473:pathology; D003113:Colonoscopy; D005260:Female; D006801:Humans; D007413:Intestinal Mucosa / Q000098:blood supply / Q000000981:diagnostic imaging / Q000473:pathology; D008297:Male; D012680:Sensitivity and Specificity; D018608:Ultrasonography, Doppler