Placental considerations in multiple pregnancy

W A Bardawil1, R L Reddy, L W Bardawil

  • 1Department of Pathology, University of Illinois School of Medicine, Chicago.

This article contains a brief description of the placenta in multiple pregnancy, including a classification based on embryogenesis. The biologic and clinical importance of recognition of the different types of twin placentas is emphasized. Finally, a classification of the pathological lesions seen in these placentas, either because of the twinning process or simply associated with it, is proposed.

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