Discussion
Few cases of complete hydatidiform mole with a coexisting
fetus have been reported over the last two decades.
This broad term can be classified into three major types:
(1) twin gestation in which one twin is a diploid fetus
with a normal placenta (46 chromosomes, 23 maternal
and 23 paternal) and the other twin is a complete hydatidiform
mole (46 chromosomes of paternal origin) with
no fetus (this is applied to our case report). (2) Singleton
gestation consisting of a triploid fetus with partial
hydatidiform mole placenta (69 chromosomes, 23
maternal and 46 paternal). (3) Twin gestation in which
one twin is a diploid fetus with normal placenta (46
chromosomes, 23 maternal and 23 paternal) and the
other twin is a triploid fetus with partial hydatidiform
mole placenta (69 chromosomes, 23 maternal and 46
paternal) [4].