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. 2022 Feb 18;50(5):1111–1120. doi: 10.1007/s15010-022-01769-z

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© The Author(s) 2022

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 1 — Abnormal endoscopy findings at the duodenum in critically ill patients with SARS-CoV-2 pneumonia presenting with severe upper GI motility disorders. A: Diffuse bleeding and mucosal edema. B and C: Severe inflammation with diffuse bleeding erosions at the duodenal flexure area. D: In the distal part of the duodenum, mucosa seems to be macroscopically normal. Another patient with inflamed mucosa and “cobblestone relief” in the upper part of the duodenum (E), whereas in the distal part (F), inflammation is less marked