[Placental lesions in malaria].

Malarial placenta is characterized by the presence of parasites in maternal erythroblasts, by an excess of intervillous macrophages and by an excess of perivillous fibrin deposits stained with malaric pigment. The high frequency of prematures, hypotrophic neonates and still-births in the malarial population is explained by the intervillous macrophages, which decrease the maternal blood output and the perivillous excess of fibrin which reduces the materno-fetal exchanges.