Case Report
Copyright ©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Jul 6, 2022; 10(19): 6710-6715
Published online Jul 6, 2022. doi: 10.12998/wjcc.v10.i19.6710
Delayed-release oral mesalamine tablet mimicking a small jejunal gastrointestinal stromal tumor: A case report
Fabio Frosio, Emanuele Rausa, Paolo Marra, Marie-Christine Boutron-Ruault, Alessandro Lucianetti
Fabio Frosio, Emanuele Rausa, Alessandro Lucianetti, Department of General Surgery, ASST Papa Giovanni XXIII Hospital, Bergamo 24127, Italy
Paolo Marra, Department of Radiology, ASST Papa Giovanni XXIII Hospital, Bergamo 24127, Italy
Marie-Christine Boutron-Ruault, Paris-Saclay University, UVSQ, Inserm, Gustave Roussy, Exposome and Heredity Team, Centre for Epidemiology and Population Health (CESP U1018), Villejuif 94800, France
Author contributions: Frosio F collected the data and wrote the paper; Rausa E reviewed the literature; Marra P reviewed the CT images; Boutron-Ruault MC critically revised the manuscript; Lucianetti A gave the input in realizing this case report and critically revised it; and All authors gave their approval to the submitted version.
Informed consent statement: Informed written consent was obtained from the patient for publishing this case report of this report and any accompanying images.
Conflict-of-interest statement: The authors declare that they have no conflict of interest.
CARE Checklist (2016) statement: The authors have read the CARE Checklist (2016), and the manuscript was prepared and revised according to the CARE Checklist (2016).
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See:
Corresponding author: Fabio Frosio, MD, Surgeon, Department of General Surgery, ASST Papa Giovanni XXIII Hospital, Piazza OMS 1, Bergamo 24127, Italy.
Received: January 24, 2022
Peer-review started: January 24, 2022
First decision: March 12, 2022
Revised: April 13, 2022
Accepted: May 17, 2022
Article in press: May 17, 2022
Published online: July 6, 2022
Core Tip

Core Tip: Enteric-coated tablets may appear as hyperdense images on computed tomography (CT) scan, and lead to misdiagnosis, for example of small intestinal gastrointestinal stromal tumors which usually show homogeneous enhancement on contrast-enhanced CT phases. Therefore, when observing small hyperdense lesions in the gastrointestinal tract on CT scan, physicians should be aware of possible radiopaque medications. A perfect knowledge of the patients’ medical treatment (even occasional) and a multidisciplinary review of all the images are essential to avoid misdiagnosis and unnecessary investigations.