RT Journal Article SR Electronic T1 Immunotherapy-induced coeliac disease in curative lung cancer JF BMJ Case Reports JO BMJ Case Reports FD BMJ Publishing Group Ltd SP e243406 DO 10.1136/bcr-2021-243406 VO 14 IS 9 A1 Hannah Walton A1 Samantha Hopkins A1 Alan Shand A1 Shahida Din YR 2021 UL http://casereports.bmj.com/content/14/9/e243406.abstract AB The advent of immunotherapy has revolutionised the treatment of metastatic lung cancer and it has recently been established as the standard of care in the radical treatment of lung cancer. However, immune-related adverse events (IrAEs) frequently occur in patients treated with immunotherapy, and rare IrAEs continue to be identified. We report a case of immunotherapy-induced coeliac disease due to adjuvant durvalumab post-chemoradiotherapy in a patient receiving curative treatment for lung cancer. The patient had raised anti-tissue transglutaminase IgA and histological findings consistent with coeliac disease. This is the first published case report of probable immunotherapy-induced coeliac disease both with the immunotherapy drug durvalumab and in the curative lung cancer setting.