Prenatal ultrasound image of the placenta in twin-anemia polycythemia sequence

Ultrasound image of the placenta in TAPS. The donor placenta (TWIN A-D) appears thickened and hyperechogenic (dashed arrow), and the recipient placenta (TWIN B-R) appears thinner and hypoechoic (thin arrow). The demarcation between the two placental territories is easily seen (thick arrow).