[Histological hanges in the placenta and vascularization of its villi in early- and late-onset preeclampsia].

Aim: to make a comparative histological study of the placenta and a morphometric analysis of its terminal villi in early- and late-onset preeclampsia.

Material And Methods: Placentae from patients whose pregnancy had been complicated by the development of early- (n=26) or late-onset (n=84) preeclampsia were examined. A control group comprised placentae from 28 patients with physiological pregnancy and no extragenital diseases.