This is the pre-peer reviewed version of the following article: Goggi, J, Haslop, A, Ramasamy, B, et al. Identifying nonsmall‐cell lung tumours bearing the T790M EGFR TKI resistance mutation using PET imaging. J Label Compd Radiopharm. 2019; 62: 596– 603. https://doi.org/10.1002/jlcr.3771, which has been published in final form at https://doi.org/10.1002/jlcr.3771. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.