Fig. 4From: Prognostic value of genetic aberrations and tumor immune microenvironment in primary acral melanomaSurvival analysis of M1 macrophage infiltration in the IM. Kaplan Meier estimates of overall survival in acral melanoma patients with high and low positive rate of M1 macrophages in the invasive margin (IM). mOS: not reached vs. 40.1Â mBack to article page