Breus mole

Last revised by Mohamed Saber on 2 Nov 2020

A Breus mole is a term that was given to a very large subchorionic hemorrhage, an unfortunate misnomer because this entity bears no relationship to the molar pregnancy.

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.

  • may be seen as a multiloculated, thick subchorionic hematoma
  • maybe echogenic or hetroechoic

Fetal demise may occur if the placental circulation is affected significantly

It was first described by Carl Breus, an Austrian obstetrician, in 1892 2.

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Cases and figures

  • Case 1
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