Acardia twin-twin reversal arterial perfusion sequence

Acardia twin is a rare, unique complication of monochorionic pregnancy. A 2.6% incidence among twins has been cited. In such complications with abnormal or non-functional heart perfused by its co-twin via placental arterial anastomosis. The acardia poorly developed and upper torso. We present case in which the fetal demise one fetus pregnancy diagnosed first trimester, but patient wishes to continue This resulted unexpected occurrence an after delivery along normal twin, placenta was single. review presented on therapeutic opportunities necessity thorough sonographic evaluation multifetal pregnancies.