Fig. 1From: Faecal calprotectin and ultrasonography as non-invasive screening tools for detecting colorectal polyps in children with sporadic rectal bleeding: a prospective studyUS (a) and endoscopic (b) appearance of right colonic polyp. US shows a rounded mass containing several tiny cyst (arrows). Graded compression demonstrates a pedicle (arrowheads) that ties the polyp to the right colon wallBack to article page