[Pathology of the placenta. II. Malformations of the umbilical cord and the placenta].

Malformations of both the umbilical cord and placenta are covered in the second part of this account of placental pathology. Disorders in placental development are subdivided on the basis of the classification published by Vogel (1984). Particular importance is attributed, in this context, to purely morphological differentiation between hydatid and partial mole. Also discussed is the problem of early placental angiomatosis (chorioangiosis, chorioangiomatosis). However, its association with malformations of the placenta seems to be questionable.