When we analyzed the correlation between LAG-3 expression on CD3+ cells and the forward (FSC-A) and side scatter (SSC-A) of morphological parameters, we observed an inverse correlation only in relapses (Figure 3C, R = −0.732, p = 0.0009; Figure 3D, R = −0.497, p = 0.0486) but not in primary GBM (Figure S1A,B). Here, LAG3 is linked to glioblastoma.