Fig. 1From: Mean computed tomography value to predict spread through air spaces in clinical N0 lung adenocarcinomaCT and histologic findings of the case with STAS positive. A CT shows a partly solid nodule in the right lower lobe. The m-CT value was − 251.8 HU (red circle). B Histologic figures of spread through air spaces (STAS) with floating clustures (arrows) of adenocarcinoma cellsBack to article page