Abdominal imaging findings in patients with SARS-CoV-2 infection: a scoping review
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REVIEW
Abdominal imaging findings in patients with SARS‑CoV‑2 infection: a scoping review Kevin Lui1 · Mitchell P. Wilson1 · Gavin Low1 Received: 31 July 2020 / Revised: 19 August 2020 / Accepted: 30 August 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Purpose This scoping review evaluated the currently available data related to abdominal imaging in the SARS-CoV-2 infection. Method A systematic review of MEDLINE, EMBASE, SCOPUS, and Web of Science was performed from inception to July 15, 2020 using PRISMA-ScR guidelines. The review included case reports and series discussing radiologic manifestations of SARS-CoV-2 infection in abdominal imaging studies. Studies published from inception to March 31, 2020, were independently screened and reviewed by one author, and another author reviewed studies published after March 31 to July 15, 2020. Study screening and full-text review for publications before March 31, 2020, was performed by one author, and another author for publications after March 31 to July 15, 2020. Results Thirty-six studies were included in qualitative synthesis. The prevalence of gastrointestinal symptoms is roughly 18% and includes loss of appetite, nausea, vomiting, diarrhea, and abdominal pain. Sixteen percent of COVID-19 cases may only present with gastrointestinal symptoms. Many patients presenting this way demonstrate evidence of COVID-19 incidentally through abdominal CT imaging at the lung bases. Studies published to date have also reported abdominal imaging findings including small and large bowel wall thickening, fluid-filled colon, pneumatosis intestinalis, pneumoperitoneum, intussusception, and ascites. Conclusion Gastrointestinal manifestations and imaging manifestations of SARS-CoV-2 infection are increasingly reported and warrant specific attention during abdominal imaging. Keywords 2019-nCoV · SARS-CoV-2 · COVID-19 · Gastrointestinal · Abdomen · Imaging Abbreviation SARS-Cov-2 Severe acute respiratory syndrome coronavirus 2 COVID-19 Coronavirus disease 2019 ACE2 Angiotensin-converting enzyme 2 GI Gastrointestinal Electronic supplementary material The online version of this article (https://doi.org/10.1007/s00261-020-02739-5) contains supplementary material, which is available to authorized users. * Kevin Lui [email protected] Mitchell P. Wilson [email protected] Gavin Low [email protected] 1
Department of Radiology and Diagnostic Imaging, University of Alberta, 2B2.41 WMC, 8440‑112 Street NW, Edmonton, AB T6G 2B7, Canada
Introduction Nearly 17 million people have been infected with the coronavirus disease (COVID-19) as of July 29, 2020, and more than 660,000 people have died [1]. The most common COVID-19 symptoms include fever (91%), cough (67%), fatigue (51%), and dyspnea (30%) [2]. However, gastrointestinal (GI) symptoms have been increasingly recognized in these patients [3–6] and were likely under-reported in early studies [7]. Some COVID-19 patients have presented only with GI symptoms at initial presentation, or even i
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