Then, based on the following cell markers, we performed cell typing: Tumor cells (MLANA, MITF), T cells (CD3D, CD8A), B cells (CD19, MS4A1, CD79A), Plasma cells (CD79A, IGHG1, MZB1), monocytes and macrophages (CD68, CD14), Retinal pigment epithelium and Photoreceptor cells (RCVRN, RPE65), Fibroblasts (COL1A1), Endothelial cells (PECAM1, VWF). The gene discussed is MS4A1; the disease is neoplasm.