NKG7 and necrobiotic xanthogranuloma: While the specific cytotoxic target of NKG7 T cells in necrobiosis remains undetermined, scRNA-seq revealed that these cells are likely contributing to NL and NXG pathophysiology via their secretion of inflammatory cytokines, notably, CCL5, IFNG, and IL32 (Figure 6E and Supplemental Figure 11).