Imaging in therapy response assessment and surveillance of lung cancer: Evidenced-based review with focus on the utility of 18F-FDG PET/CT

Abstract This review covers the state-of-the-art imaging in therapy assessment and surveillance of lung cancer with focus on the utility of 18F-FDG PET/CT. We review different qualitative and quantitative response assessment criteria in lung cancer, common pitfalls and atypical patterns of response to immunotherapy, and imaging features of common immune‐related adverse events. In addition, the currently recommended imaging work-up in surveillance of asymptomatic non-small cell and small-cell lung cancer patients and future developments will be discussed.