VWF and neoplasm: 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).