Placenta: Difference between revisions
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*Look for '''inflammation''', especially by the fetal surface in the intervillous spaces and around the fetal blood vessels.<ref group=notes>Minor inflammation in the decidua can be ignored as it doesn't have a clinical significance for the fetus.</ref> | *Look for '''inflammation''', especially by the fetal surface in the intervillous spaces and around the fetal blood vessels.<ref group=notes>Minor inflammation in the decidua can be ignored as it doesn't have a clinical significance for the fetus.</ref> | ||
<gallery mode=packed heights= | <gallery mode=packed heights=200> | ||
File:Histopathology of subchorionic intervillositis, annotated.jpg|Acute '''subchorionic intervillositis''', with neutrophils (annotated) in Langhan’s layer of fibrinoid (by the fetal surface, at the base of a chorionic villus, seen at top right). | File:Histopathology of subchorionic intervillositis, annotated.jpg|Acute '''subchorionic intervillositis''', with neutrophils (annotated) in Langhan’s layer of fibrinoid (by the fetal surface, at the base of a chorionic villus, seen at top right). | ||
File:Insignificant intervillous neutrophils, annotated.jpg|On the other hand, a small amount of intervillous neutrophils by the fetal surface like this is insignificant. | File:Insignificant intervillous neutrophils, annotated.jpg|On the other hand, a small amount of intervillous neutrophils by the fetal surface like this is insignificant. | ||
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</gallery> | </gallery> | ||
'''Other relatively common findings''' | '''Other relatively common findings''' | ||
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File:Histology of calcification of a term placenta.jpg|'''Calcifications''', are normal in term placentas. Report if seen in a placenta younger than 36 weeks of gestational age.<ref>[https://www.researchgate.net/publication/287299495_Placental_calcification_Its_processes_and_impact_on_pregnancy Chapter 3. Placental Calcification: Its Processes and Impact on Pregnancy], {{cite book | last=Kachewar | first=Sushil | title=Calcification : processes, determinants and health impact | publisher=Nova Science Publishers, Inc | publication-place=New York | year=2013 | isbn=978-1-62618-155-7 | oclc=840507829}}</ref> | File:Histology of calcification of a term placenta.jpg|'''Calcifications''', are normal in term placentas. Report if seen in a placenta younger than 36 weeks of gestational age.<ref>[https://www.researchgate.net/publication/287299495_Placental_calcification_Its_processes_and_impact_on_pregnancy Chapter 3. Placental Calcification: Its Processes and Impact on Pregnancy], {{cite book | last=Kachewar | first=Sushil | title=Calcification : processes, determinants and health impact | publisher=Nova Science Publishers, Inc | publication-place=New York | year=2013 | isbn=978-1-62618-155-7 | oclc=840507829}}</ref> | ||
File:Histopathology of fibrinoid necrosis of the placenta.jpg|'''[[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|'''[[Fibrinoid necrosis of the placenta|Fibrinoid necrosis]]'''. Only needs mention when severe {{Comprehensive-begin}}or moderate{{Comprehensive-end}}. | ||