Fig. 4From: Preoperative CT-based radiomics combined with tumour spread through air spaces can accurately predict early recurrence of stage I lung adenocarcinoma: a multicentre retrospective cohort studyMicroscopic view of spread through air spaces. A-B Assessment of tumor spread through air spaces by haematoxylin and eosin staining. Tumor cell masses were spread through the air spaces and located in the alveolar cavity beyond the margins of the main body of the tumorBack to article page