P26.07: Marked difference in placental echogenicity as a first manifestation of twin-twin transfusion in monochorionic diamniotic twin pregnancies, two cases

Abstract

in echogenicity between placental parts. At 34 weeks C-section was performed. Boy A (donor) 1750 g, AS 9/9, Hb 7.7, Ht 0.40, required blood transfusion. Boy B (recipient) 2100 g, AS 9/9. Hb 15.4, Ht 0.71. Examination of the placenta showed marked differences in maturation of placental parts with hydropic villi in area of twin A. There was a single AV-anastomosis from A to B. Conclusion: The sonographic finding of an echogenic placental part at the donor side is indicative of TAPS. We suggest this finding must lead to a high index of suspicion of TAPS, warrants intensified fetal monitoring and consideration of delivery as soon as fetal lung maturity is confirmed.