Citation, DOI & article data
Retroplacental complex (RPC) is the region behind the placenta and is composed of decidua basalis and portions of myometrium including the maternal veins which drain the placenta.
- visualized post 20 weeks of gestation
- seen as an echo-poor, subplacental region with linear horizontal echoes representing venous channels
- Doppler flow is noted within the vascular channels
- the thickness can go up to 9.5 mm
Prominent retroplacental complex in an anteriorly placed placenta may be a cause of torrential bleeding during invasive procedures such as Cesarean section or amniocentesis.