title: Sonographic features of colon carcinoma seen with high-frequency transabdominal ultrasound.
abstract: To assess the value of high-frequency ultrasonography as a diagnostic imaging procedure in patients with colon carcinoma, we first evaluated the sonograms of 37 patients who had been already diagnosed with contrast enema and/or colonoscopy as having colon carcinoma. As a result, the sonographic criteria for diagnosis of a possible colon carcinoma were (1) a localized and irregular thickening of the colonic wall with heterogenous low echogenicity, (2) an irregular contour, (3) a lack of demonstrable movement or change of configuration of the bowel on real-time scanning, and (4) absence of wall stratification. During the last 4 years, 41 consecutive patients had findings meeting our sonographic criteria. In 37 patients (90%), the presence of colon carcinoma was confirmed by contrast enema and/or colonoscopy. Our study suggests that high-frequency real-time ultrasonography may be a useful imaging technique in diagnosis of colon carcinoma.
authors.affiliation: Department of Internal Medicine, Saga Prefectural Hospital, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Shirahama
authors.forename: T
authors.initials: T
authors.lastname: Koga
authors.forename: H
authors.initials: H
authors.lastname: Ishibashi
authors.forename: S
authors.initials: S
authors.lastname: Uchida
authors.forename: Y
authors.initials: Y
authors.lastname: Ohta
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001466:Barium Sulfate; D003106:Colon / Q000000981:diagnostic imaging / Q000473:pathology; D003110:Colonic Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging*; D003113:Colonoscopy; D004733:Enema; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D014463:Ultrasonography
chemical_list: D001466:Barium Sulfate