As expected, tumors were immune cell rich and the retina on the side of the tumor had significantly higher numbers of immune cells (4.3 fold greater number of CD45+, 2.4 fold greater number of CD163+, 1.9 fold greater number of IBA1+) in comparison to the opposite side of the retina (Additional file 1: Fig. S1). The gene discussed is PTPRC; the disease is neoplasm.