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. 2022 Jul 19;9(1):e000909. doi: 10.1136/bmjgast-2022-000909

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© Author(s) (or their employer(s)) 2022. 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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Surgical rehearsal of lesion removal on prototype organ by a consultant liver surgeon, conducted without gloves to demonstrate its authenticity as a surrogate. On palpation, the liver tumour was identifiable as a discrete hard lesion on a background soft tissue with a rubbery texture. The incision reveals the tumour attached to the left hepatic vein, which ‘bled’ when the surgeon attempted removal. The procedure emulated the relationship between the tumour and major vascular structures that would be encountered during the actual procedure on the real patient, beneficial to teach surgery understudies about surgical protocol in such instances.