Molar pregnancies Partial mole. Complete mole: no remnants of fetal fetal tissues tissue(embryonic · Risk for ovarian and or teratoma or extraembryonic) choriocarcinoma Triploid, paternal Diploid but all chromosomes are maternal or paternal, respectivelyMolar pregnancies • Partial mole: remnants of fetal tissue (embryonic and/or extraembryonic) • Triploid, paternal • Complete mole: no fetal tissues • Risk for ovarian teratoma or choriocarcinoma • Diploid but all chromosomes are maternal or paternal, respectively