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Placenta

Placental findings in specific newborn/fetal or maternal conditions

Missed abortion

Reviewers: Mandolin Ziadie, M.D. (see Reviewers page)
Revised: 15 November 2011, last major update October 2011
Copyright: (c) 2003-2011, PathologyOutlines.com, Inc.

Definition
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● Fetal death with delayed abortion resulting in passage of placental tissue without an embryo

Gross description
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● Placental tissue including a gestational sac and villi are present in the absence of a fetus

Micro description
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● 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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● Molar pregnancy

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

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