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Placental septal cyst

Last revised by Dr Jeremy Jones on 20 Sep 2021

Placental septal cysts are placental cysts typically located in the mid-placenta. It forms between the cotyledons of the placenta. The cysts contain gelatinous material and are usually 5-10 mm in diameter. They may be present in 10-20% of placentas from full-term uncomplicated pregnancies.

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