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. 2021 Feb 24;8(1):e000578. doi: 10.1136/bmjgast-2020-000578

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© Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (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, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.

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Upper GI tract. A patient admitted in intensive care unit underwent upper GI endoscopy on day 15 after admission for haematemesis. Digested blood was found in the stomach and duodenum, together with a superficial ulcer with irregular margins with flat pigmentation (IIc according to Forrest classification) in the lesser curvature, on a pale and dystrophic background mucosa (A, B). In the second duodenal portion, small ulcers were found on an atrophic background mucosa (C). Histology of the ulcer showed ischaemic damage with sporadic endocapillary microthrombi. GI, gastrointestinal.