Difference between revisions of "Placenta"

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*May be spelled ''foetus papyraceus''.
*May be spelled ''foetus papyraceus''.
*[[AKA]] ''fetus compressus''.
*[[AKA]] ''fetus compressus''.
 
{{Main|Fetus papyraceus}}
===General===
*Remnant of a dead fetus usu. from a twin pregnancy.
**No clinical consequence for mother and remaining fetus.
 
Clinical:<ref name=Ref_Placenta141>{{Ref Placenta|141}}</ref>
*Documented multiple gestation by imaging.
*Elevated AFP.
*May be a "fetal reduction" in the context of ''in vitro'' fertilization (IVF).
 
Note:
*"Papyraceus" = paper-like.
 
===Gross===
*Pale yellow flattened disk or plaque with a pigmented macule<ref name=Ref_Placenta141>{{Ref Placenta|141}}</ref> - on membranes or placental disc.
 
===Microscopic===
Features:
*Fetal structures - such as:
**Cartilage.
**Bone.
 
Images:
*[http://www.nejm.org/doi/full/10.1056/NEJMicm020196 Fetus papyraceus (nejm.org)].
*[http://path.upmc.edu/cases/case128.html Fetus papyraceus (upmc.edu)].
*[http://www.neonet.ch/en/03_Case_of_the_month/archive/11_dermatologic_disorders/2002_10.asp Fetus papyraceus (neonet.ch)].<ref>URL: [http://www.neonet.ch/en/03_Case_of_the_month/archive/11_dermatologic_disorders/2002_10.asp http://www.neonet.ch/en/03_Case_of_the_month/archive/11_dermatologic_disorders/2002_10.asp]. Accessed on: 3 January 2012.</ref>


==Placental mesenchymal dysplasia==
==Placental mesenchymal dysplasia==
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