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[Neuropathological study of 134 fetuses in HIV infected mother].

A neuropathological study performed in 134 foetuses from HIV infected mothers, between 16 and 35 weeks of gestation, revealed two cases of hypoxic-ischemic brain damage, related to long labor and drug abuse. Immunostains against HIV proteins were negative in all cases. Nests of migrating cells in the cerebrum and cerebellar heterotopias were found in most cases and were considered to be common findings in fetal brain. Our study clearly showed the absence of cerebral HIV infection during early pregnancy and raises the question of the frequency of vertical transmission during HIV infection. However, the evaluation of cerebral changes in infants with HIV infection should take into consideration the features of the developing brain and the existence of other adverse factors that may interfere with its development during pregnancy.