Gastrointestinal Duplications Workup

Updated: Jun 23, 2020
  • Author: Amulya K Saxena, MD, PhD, DSc, FRCS(Glasg); Chief Editor: Harsh Grewal, MD, FACS, FAAP  more...
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Imaging Studies

The most common investigative methods used to image duplications are ultrasonography (US) and contrast-medium examinations. However, computed tomography (CT) and magnetic resonance imaging (MRI) can be helpful in difficult cases that require a multiplanar approach. [18]

Thoracic duplications are often apparent on routine chest radiography. [19] They have a characteristic enhancing ring that can be revealed by CT.

Contrast studies are helpful in demonstrating the mass effect and displacement of normal alignment. [20, 18]

In cases of GI bleeding, heterotopic gastric lining can be detected by using technetium scans. [21]

CT may be useful in the diagnosis of duodenal duplications. [22]

US, including endoscopic ultrasonography (EUS), [23]  has been successfully used in diagnosing duplications. [24, 25, 26, 27, 28] In cases of colonic or presacral duplications, US has the added benefit of revealing associated genitourinary anomalies.