Placenta
Placental gross / microscopic abnormalities, nonneoplastic
Placenta previa

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

Revised: 13 October 2017, last major update October 2011

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PubMed Search: Placenta previa[title] "loattrfree full text"[sb]

Cite this page: Ziadie, M. Placenta previa. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/placentaplacentaprevia.html. Accessed October 20th, 2017.
Definition / general
  • Implantation of the placenta in the lower uterine segment, partially or completely occluding the internal os
  • Important cause of late vaginal bleeding and emergent cesarean delivery
Etiology
  • Associated with a history of D&C, cesarean delivery and multiparity
Diagrams / tables

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Placenta previa

Gross description
  • Marginal hematomas may be present
  • In vaginal deliveries, point of membrane tear may be at the disc edge
Gross images

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Placenta previa