Spread through air spaces is a common phenomenon of pulmonary metastasized tumours regardless of origins.
Yi MaYuanyuan ZhangHaoran LiJiawei LiHaiming ChenPei-Yu WangRongxin XiaoXiao LiShaodong WangMantang QiuPublished in: European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery (2021)
STAS might be a lung-specific tumour invasion pattern and STAS is commonly observed in PMs of different origins. The incidence of STAS was significantly higher in PMs originating from epithelial tissues than those from mesenchymal tissues. Presence of STAS was an independent predictor of poor prognosis in patients with PM from CRC.