Placenta: Difference between revisions

Jump to navigation Jump to search
Mikael Häggström (talk | contribs)
Mikael Häggström (talk | contribs)
 
(One intermediate revision by the same user not shown)
Line 78: Line 78:
File:Histopathology of fibrinoid necrosis of the placenta.jpg|Villous '''[[Fibrinoid necrosis of the placenta|fibrinoid necrosis]]'''. Only needs mention when severe {{Comprehensive-begin}}or moderate{{Comprehensive-end}}.
File:Histopathology of fibrinoid necrosis of the placenta.jpg|Villous '''[[Fibrinoid necrosis of the placenta|fibrinoid necrosis]]'''. Only needs mention when severe {{Comprehensive-begin}}or moderate{{Comprehensive-end}}.
File:Histopathology of chorangiosis.jpg|'''Chorangiosis''', an abundance of blood vessels within the chorionic villi.
File:Histopathology of chorangiosis.jpg|'''Chorangiosis''', an abundance of blood vessels within the chorionic villi.
File:Histopathology of placenta with increased syncytial knotting of chorionic villi, annotated.jpg|Increased syncytial knotting of chorionic villi, with two knots pointed out. Causes include both hypoxia and hyperoxia.<ref name="pmid17140657">{{cite journal| author=Heazell AE, Moll SJ, Jones CJ, Baker PN, Crocker IP| title=Formation of syncytial knots is increased by hyperoxia, hypoxia and reactive oxygen species. | journal=Placenta | year= 2007 | volume= 28 Suppl A | issue=  | pages= S33-40 | pmid=17140657 | doi=10.1016/j.placenta.2006.10.007 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=17140657  }} </ref>
</gallery>
</gallery>


Line 89: Line 90:


Mild to moderate inflammation in the decidua alone can be ignored (as it is most commonly a physiological response and doesn't have a clinical significance for the fetus).
Mild to moderate inflammation in the decidua alone can be ignored (as it is most commonly a physiological response and doesn't have a clinical significance for the fetus).
Example in a '''twin''' placenta:
{|class=wikitable
| Twin placenta, Caesarean section:
*Third trimester dichorionic, diamniotic twin placenta.
*Villous morphology histologically appropriate for gestational age.
*Placental weight approximately 25th percentile for gestational age.
*Two three-vessel umbilical cords.
*Negative for chorioamnionitis and funisitis.
|}
<noinclude>{{Bottom}}</noinclude>
<noinclude>{{Bottom}}</noinclude>