[Pathology of the placenta. IV. Maturation disorders of the placenta under special clinical conditions].

In Part IV of this review of placental pathology, reference is made to impaired maturation of the placenta under special clinical conditions. Foetal erythroblastosis is only of minor importance, in that context, today, while similar placental alterations may result from foetal hydrops of different genesis, including immunological causes. A detailed account is given of diabetic impairment of maturation together with possible placental diagnosis of diabetes. Cases of diabetes mellitus with concomitant EPH gestosis were found to be more strongly determined for placental differentiation by EPH gestosis. Reference, finally, is made to disturbed placental differentiation under conditions of EPH gestosis with or without concomitant impairment of intervillous circulation.