Placental gross/microscopic abnormalities, non-neoplastic
Accessory (Succenturiate) Lobe
Reviewers: Mandolin Ziadie, M.D. (see Reviewers page)
Revised: 10 October 2011, last major update September 2011
Copyright: (c) 2003-2011, PathologyOutlines.com, Inc.
● One or multiple accessory lobes connected to the main disc by blood vessels that are at risk for hemorrhage and thromboemboli
● Seen in 3% of placentas
● Due to focal non-involution of chorionic laevae
● Main placental disc is attached to a smaller portion of placenta by fetal vessels and membranes
End of Placenta > Placental gross/microscopic abnormalities, non-neoplastic > Accessory (Succenturiate) Lobe
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