Key result
Despite the presence of a massive subamniotic haematoma persisting until the end of pregnancy, expectant management resulted in a favorable obstetric outcome with the delivery of a healthy newborn at 37 weeks.
Case Report (n=1)
This case demonstrates that a massive subamniotic haematoma persisting until the end of pregnancy can still result in a favourable obstetric outcome without severe complications.
May support expectant management of massive subamniotic haematoma in select cases; leaves open generalizability and need for prospective data.
Cases of extensive placental haematomas that persist beyond the second trimester until the end of pregnancy are extremely rare and are associated with poor obstetric outcome. We describe a case of a massive subamniotic haematoma diagnosed by ultrasound in the first trimester, confirmed by magnetic resonance imaging that persisted till the end of pregnancy. Despite the large size of the haematoma, complications such as placental abruption or fetal growth restriction did not occur, and pregnancy had a favourable outcome. On pathological examination, more than 50% of the placenta showed signs of an extensive organized subamniotic haematoma.
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Verde et al. (2014) conducted a case report in Extensive subamniotic haematoma (n=1). Expectant management and elective caesarean section was evaluated on Obstetric outcome. Despite the presence of a massive subamniotic haematoma persisting until the end of pregnancy, expectant management resulted in a favorable obstetric outcome with the delivery of a healthy newborn at 37 weeks.
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