True regarding circumvallate placenta is (LQ)
|A||Chorionic plate is small|
|B||Basal plate is small|
|C||No fetomaternal complications|
|D||cord is attached at the margin|
Chorionic plate is small
a. The chorionic plate is smaller than the basal plate as the fetal membranes double back on fetal side around the edge of the placenta.
b. There is a thick ring of membranes on fetal surface of placenta.
c. The incidence is 1%. It is associated with abruption, oligoamnios, abnormal CTG, preterm labour, miscarriage.