Suspected twin anemia polycythemia sequence in a dichorionic, diamniotic twin pregnancy: a case report.

Background: Twin anemia polycythemia sequence is a rare complication in monochorionic twin pregnancy.

Case Presentation: We describe a case of dichorionic twin pregnancy presenting with suspected twin anemia polycythemia sequence. A 31-year-old White female, on her third pregnancy, had a routine ultrasound scan at 12 weeks gestation, which demonstrated a dichorionic twin pregnancy with one placenta located in the anterior wall and the other in the posterior wall of the uterus.