Fig. 4From: Evaluation of recurrence risk for patients with stage I invasive lung adenocarcinoma manifesting as solid nodules based on 18F-FDG PET/CT, imaging signs, and clinicopathological featuresRecurrence-free survival (RFS) based on the a International Association for the Study of Lung Cancer Pathology Committee (IASLC) grade, b cavity sign, c maximal standardized uptake value (SUVmax), and d metabolic tumor volume (MTV)Back to article page