Fig. 1From: Exploration of spatial distribution of brain metastasis from small cell lung cancer and identification of metastatic risk level of brain regions: a multicenter, retrospective studyThe axial images of the frequency map of all brain metastases from SCLC. From the heat map, we can intuitively feel that the brightness of each brain region is not uniform. The blue arrow indicates a significantly lower incidence, while the yellow arrow indicates a higher incidenceBack to article page