Delayed-release oral mesalamine tablet mimicking a small jejunal gastrointestinal stromal tumor:A case report  

作　　者：Fabio Frosio Emanuele Rausa Paolo Marra Marie-Christine Boutron-Ruault Alessandro Lucianetti 

机构地区：[1]Department of General Surgery,ASST Papa Giovanni XXIII Hospital,Bergamo 24127,Italy [2]Department of Radiology,ASST Papa Giovanni XXIII Hospital,Bergamo 24127,Italy [3]Paris-Saclay University,UVSQ,Inserm,Gustave Roussy,Exposome and Heredity Team,Centre for Epidemiology and Population Health(CESP U1018),Villejuif 94800,France

出　　处：《World Journal of Clinical Cases》2022年第19期6710-6715,共6页世界临床病例杂志

摘　　要：BACKGROUND Enteric-coated medications are supposed to pass intact through the gastric environment and to release the drug content into the small intestine or the colon.Before dissolution of the enteric coating,they may appear hyperdense on computed tomography(CT).Unfortunately,few reports have been published on this topic so far.In this case report,the hyperdense appearance on contrastenhanced CT of an enteric-coated mesalamine tablet was initially misinterpreted as a jejunal gastrointestinal stromal tumor(GIST).CASE SUMMARY An asymptomatic 81-year-old male patient,who had undergone laparoscopic right nephrectomy four years earlier for stage 1 renal carcinoma,was diagnosed with a jejunal GIST at the 4-year follow-up thoraco-abdominal CT scan.He was referred to our hub hospital for gastroenterological evaluation,and subsequently underwent 18-fluorodeoxyglucose positron emission tomography,abdominal magnetic resonance imaging,and video capsule endoscopy.None of these examinations detected any lesion of the small intestine.After reviewing all the CT images in a multidisciplinary setting,the panel estimated that the hyperdense jejunal image was consistent with a tablet rather than a GIST.The tablet was an 800 mg delayed-release enteric-coated oral mesalamine tablet(Asacol®),which had been prescribed for non-specific colitis,while not informing the hospital physicians.CONCLUSION Delayed-release oral mesalamine(Asacol®),like other enteric-coated medications,can appear as a hyperdense image on a CT scan,mimicking a small intestinal GIST.Therefore,adetailed knowledge of the patients’medications and a multidisciplinary review of the images areessential.

关 键 词：MESALAMINE Enteric-coating Asacol TABLET Gastrointestinal stromal tumor Case report 

分 类 号：R735[医药卫生—肿瘤]