PGF and hydrops fetalis: Other reports have described similar high levels of sFLT1 and low levels of PlGF with fetal hydrops secondary to a variety of etiologies such as parvovirus infection,198 cytomegalovirus infection,199 and fetal heart failure,200 suggesting that the antiangiogenic state constitutes a link between fetal-placental unit and the clinical manifestation of PE in mirror syndrome.