Fig. 3
From: M1 macrophage features in severe Plasmodium falciparum malaria patients with pulmonary oedema

The immunohistochemical staining of lung macrophages in P. falciparum malaria. Expressions of CD68 (a), CD40 (b), and CD163 (c), were demonstrated in control, non-PE and PE groups. CD68 expression showed fine brown color in the cytoplasmic granules. CD40 expression was evident on cell membrane while CD163 positive cells showed fine brown color in the cytoplasm of lung macrophages. (All images: ×400, Avidin–Biotin–peroxidase complex technique)