Double-contrast barium examination and endoscopy in the detection of small polyps of the large intestine.
The purpose of this study was to compare double-contrast barium examination (DCBE) and endoscopy in detection of small colonic polyps. In 57 patients DCBE revealed 106 polyps in the large intestine. On total colonoscopy, 62 polyps could be verified. The size of the polyps excised ranged from 2 to 15 mm. Compared with DCBE, colonoscopy verified 48 true positive, 44 false positive and 14 false negative polyps. In revealing a polyp less than 5 mm, DCBE had a sensitivity of 72%, whereas in detection of larger polyps the sensitivity was 81%. Histological verification was available in 52 of the 62 removed polyps. A tubular adenoma was found in 12 of the 29 diminutive polyps verified with histology. DCBE and colonoscopy could not differentiate between adenomas and hyperplastic polyps. Since a polyp less than 5 mm may represent an adenoma, a precancerous lesion, its removal is indicated during colonoscopy after DCBE has detected it.
Ahovuo
J
J
Fourth Department of Surgery, University Central Hospital, Helsinki, Finland.
Linden
H
H
Kinnunen
J
J
Edgren
J
J
Kellokumpu
I
I
Husa
A
A
D000236:Adenoma / Q000175:diagnosis / Q000000981:diagnostic imaging; D000293:Adolescent; D000328:Adult; D000368:Aged; D001466:Barium Sulfate; D003110:Colonic Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D004724:Endoscopy; D005260:Female; D006801:Humans; D007417:Intestinal Polyps / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011230:Precancerous Conditions / Q000175:diagnosis / Q000000981:diagnostic imaging; D011859:Radiography
D001466:Barium Sulfate