GATA3 showed moderate to strong nuclear expression in the epithelial cells of basal and predominantly suprabasal layers in all cases of PVL (Figure 2A), with 7/8 PVL cases presenting a final score of ≥4 (Figure 1A, Table S2), while nuclear staining was also observed in inflammatory cells in the subepithelial connective tissue (Figure 2A). This evidence concerns the gene GATA3 and periventricular leukomalacia.