Extramembranous pregnancy: a case report

A rare case of extramembranous pregnancy is reported. It was associated with intermittent loss of liquor and bloody discharge beginning at about the 25th week of gestation. An anencephalic infant was delivered alive from a breech presentation during the 31st week of gestation. The placenta was markedly circumvallate, with short, thick membranes which did not cover more than 10% of the infant. The course of the pregnancy and the examination of the infant and placenta are discussed, and the pertinent literature is reviewed.