Placental gross / microscopic abnormalities, nonneoplastic
Breus mole

Topic Completed: 1 September 2011

Revised: 15 February 2019

Copyright: 2002-2019,, Inc.

PubMed Search: Breus mole

Mandolin S. Ziadie, M.D.
Page views in 2018: 663
Page views in 2019 to date: 515
Cite this page: Ziadie MS. Breus mole. website. Accessed November 21st, 2019.
Definition / general
  • Massive subchorionic hematoma that can lead to diminished placental function and intrauterine death
  • Sometimes identified on ultrasound (Arch Pathol Lab Med 1983;107:438)
  • Chronic hemorrhage into the subchorionic space that is seen in both livebirths and missed abortions
Gross description
  • Nodular hematoma on fetal surface that bulges into the amnionic cavity and distorts the underlying parenchyma
  • Overlying membranes may be discolored due to hemosiderin
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