In the PCa group, a median of 31.55 (range of 26.30%–38.20%) of the immature DCs were positive for HLA‐DR, compared to a median of 54.30 (range of 32.00%–81.40%) in the HD group (p = .123) and for CD80 a median of 8.74 (range of 5.78%–24.30%) for PCa samples was compared to a median of 12.40 (range of 78.80%–16.20%) in the HD group (p = .884). The gene discussed is CD80; the disease is posterior cortical atrophy.