Gastrointestinal Duplications Workup

Updated: Aug 08, 2022
  • Author: Amulya K Saxena, MD, PhD, DSc, FRCS(Glasg); Chief Editor: Harsh Grewal, MD, FACS, FAAP  more...
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Workup

Imaging Studies

Multimodality imaging may facilitate diagnosis. [20] 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. [21]

Thoracic duplications are often apparent on routine chest radiography. [22] 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. [23, 21]

In cases of GI bleeding, heterotopic gastric lining can be detected by using technetium scans. [24]

CT may be useful in the diagnosis of duodenal duplications. [25]

US, including endoscopic ultrasonography (EUS), [26]  has been successfully used in diagnosing duplications. [27, 28, 29, 30, 31] In cases of colonic or presacral duplications, US has the added benefit of revealing associated genitourinary anomalies.