Table 1 CT features analyzed and measured for type I–IV SLADCs
Type I | Type II | Type III | Type IV | |
|---|---|---|---|---|
Characteristics | Location Size Shape Lobulation Spiculation Air bronchogram sign Air space Pleural retraction Pleural attachment Vessel convergence sign Lymphadenopathy Pleural effusion | Location Size Shape CT value of tumor Lobulation Spiculation Air bronchogram sign Air space Pleural retraction Pleural attachment Vessel convergence sign Lymphadenopathy Pleural effusion | Location Size Shape Cyst walls thickness Septation within the cyst GGO component Pleural retraction Pleural attachment Vessel convergence sign Lymphadenopathy Pleural effusion | Location Size Shape CT value of tumor Air bronchogram sign Air space GGO component Pleural retraction Pleural attachment Vessel convergence sign Lymphadenopathy Pleural effusion |