A Breus mole is a term that was given to a very large subchorionic haemorrhage, an unfortunate misnomer because this entity bears no relationship to the molar pregnancy.
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Pathology
The lesions are a mass of fibrin formed secondary to thrombosis. They dissect and form a subchorionic thrombohematoma which ultimately causes stripping of the chorionic plate away from the villous spaces.
Radiographic features
Ultrasound
- may be seen as a multiloculated, thick subchorionic haematoma
- maybe echogenic or hetroechoic
Treatment and prognosis
Fetal demise may occur if the placental circulation is affected significantly
History and etymology
It was first described by Carl Breus, an Austrian obstetrician, in 1892 2.
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