Fig. 2
A typical CT and 18F-FDG PET/CT images of STAS-positive lung adenocarcinoma in a 55-year-old female patient. The histological subtype was of a lower grade (solid predominant). A The CT scan showed a solid density nodule in the upper lobe of the left lung, with a maximum diameter of approximately 2.9 cm. The nodule appears lobulated and have fine spiculations around it. It was causing traction on the adjacent pleura. There was no calcification present, and no ill-defined peripheral opacity. B The PET/CT scan showed abnormal uptake of FDG, with corresponding values of SUVmax, SUVmean, SUVpeak, SULmax, SULmean, SULpeak, MTV and TLG was 11.2, 7.3, 9.1, 8.2, 5.3, 6.6, 7.9 and 57.8, respectively