Difference between revisions of "Placenta"

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765 bytes added ,  04:12, 14 August 2011
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=Diseases of the placental attachment=
=Diseases of the placental attachment=
==Placenta accreta/percreta/increta==
==Placenta creta==
*Placenta attaches to the uterus deeper than it should.
*What?
**Placenta attaches to the uterus deeper than it should.
*Clinical?
**Associated with post-partum hemorrhage that may lead to hysterectomy.<ref name=pmid18514815>{{Cite journal  | last1 = Tantbirojn | first1 = P. | last2 = Crum | first2 = CP. | last3 = Parast | first3 = MM. | title = Pathophysiology of placenta creta: the role of decidua and extravillous trophoblast. | journal = Placenta | volume = 29 | issue = 7 | pages = 639-45 | month = Jul | year = 2008 | doi = 10.1016/j.placenta.2008.04.008 | PMID = 18514815 }}</ref>
*Pathogenesis?
**It is suspected that it arises as there is defect in the endometrium/myometrium -- ''not'' deeper invasion.<ref name=pmid18514815/>


Note:
Note:
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===Placenta accreta===
===Placenta accreta===
*Trophoblastic tissue (directly) adherent to the myometrium.<ref name=Ref_Pathde_974>{{Ref Pathde|974}}</ref>
*Trophoblastic tissue (directly) adherent to the myometrium.<ref name=Ref_Pathde_974>{{Ref Pathde|974}}</ref>
===Placenta increta===
*Trophoblastic tissue entends into the myometrium.
===Placenta increta===
*Trophoblastic tissue penetrates through the myometrium.


==Placental abruption==
==Placental abruption==
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