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Ultrasound images from monochorionic diamniotic twin pregnancy with polyhydramnios affecting a recipient-like twin. (A) Thin intertwin membrane. (B) One twin with polyhydramnios. Deepest vertical pocket (DVP) of amniotic fluid measures 9.4 cm (membrane, arrow). (C) Cotwin with normal amniotic fluid volume, DVP 3.5 cm.
