الملخص الإنجليزي
Placental haematomas can be anatomically classified
into three main types: subchorionic, retroplacental
and subamniotic.1
The origin of blood in retroplacental
and subchorionic haematomas is maternal. However,
subamniotic placental haematomas are rare and result
from the rupture of chorionic vessels near the umbilical
cord insertion; most of these types of haematomas
are discovered after birth and result from excessive
traction of the umbilical cord.1,2 However, some
may occur during pregnancy, with Van Den Bosch
et al. previously reporting an antenatal subamniotic
haematoma diagnosed at 34 gestational weeks and
associated with an uneventful pregnancy and labour.
