Placenta
Placental gross / microscopic abnormalities, nonneoplastic
Accessory (succenturiate) lobe

Author: Mandolin Ziadie, M.D. (see Authors page)

Revised: 12 October 2017, last major update September 2011

Copyright: (c) 2002-2017, PathologyOutlines.com, Inc.

PubMed Search: Placenta accessory lobe OR succenturiate lobe

Cite this page: Ziadie, M. Accessory (succenturiate) lobe. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/placentaaccessory.html. Accessed November 23rd, 2017.
Definition / general
  • 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
Etiology
  • Due to focal noninvolution of chorionic laevae
Gross description
  • Main placental disc is attached to a smaller portion of placenta by fetal vessels and membranes
Gross images

Images hosted on other servers:

Accessory lobe