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Placenta
Placental findings in specific newborn / fetal or maternal conditions
Missed abortion

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

Revised: 16 October 2017, last major update October 2011

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PubMed Search: Missed abortion [title] placenta

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Table of Contents
Definition / general | Gross description | Microscopic (histologic) description | Differential diagnosis
Cite this page: Ziadie, M. Missed abortion. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/placentamissedab.html. Accessed February 18th, 2019.
Definition / general
  • Fetal death with delayed abortion resulting in passage of placental tissue without an embryo
Gross description
  • Placental tissue including a gestational sac and villi are present in the absence of a fetus
Microscopic (histologic) description
  • Normal or hydropic villi, sometimes with cisterns and without trophoblastic hyperplasia
  • Dysmorphic villi suggest a chromosomal abnormality
  • Other features may reveal a cause of fetal death including vasculitis, infarction, perivillous fibrin, deciduitis and intervillositis
Differential diagnosis
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