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Marginal cord insertion

Dr Abhilash Sandhyala and Dr Yuranga Weerakkody et al.

A marginal cord insertion is a type of abnormal cord insertion.

Epidemiology

The estimated incidence is at ~ 7 ¹ % of singleton pregnancies but ~ 25 % of twin pregnancies.

Pathology

In this situation the cord insertion is too close to the placental margin (usually defined as less than 2cm ⁵)

Complications

progression into a velamentous cord insertion as a result of "placental trophotropism"

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