Placental meconium: Difference between revisions
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{{ Infobox diagnosis | {{ Infobox diagnosis | ||
| Name = {{PAGENAME}} | | Name = {{PAGENAME}} | ||
| Image = Meconium-laden_macrophages_high_mag.jpg | | Image = Meconium-laden_macrophages_high_mag.jpg | ||
| Width = | | Width = | ||
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| ClinDDx = | | ClinDDx = | ||
}} | }} | ||
'''Placental meconium''', also known as ''' | '''Placental meconium''', also known as '''meconium staining''', is associated with fetal distress. | ||
==General== | ==General== | ||
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*Hemosiderin-laden macrophages. | *Hemosiderin-laden macrophages. | ||
**This is sorted-out with an iron stain -- see below. | **This is sorted-out with an iron stain -- see below. | ||
*[[Chorioamnionitis]] - apoptotic cells may be mistaken for [[neutrophils]]. | |||
Notes: | Notes: | ||
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Image:Meconium-laden_macrophages_intermed_mag.jpg | Meconium-laden macrophages - intermed. mag. (WC) | Image:Meconium-laden_macrophages_intermed_mag.jpg | Meconium-laden macrophages - intermed. mag. (WC) | ||
</gallery> | </gallery> | ||
==Special stains== | ==Special stains== | ||
*Hemosiderin +ve in hemosiderin-laden macrophages. | *Hemosiderin +ve in hemosiderin-laden macrophages. | ||
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COMMENT: | COMMENT: | ||
A PAS-D stain and Prussian blue stain were used to confirm the presence of meconium. | A PAS-D stain and Prussian blue stain were used to confirm the presence of meconium. | ||
</pre> | |||
===Degenerative changes present=== | |||
<pre> | |||
PLACENTA, UMBILICAL CORD AND FETAL MEMBRANES, BIRTH: | |||
- FETAL MEMBRANES WITH MECONIUM-LADEN MACROPHAGES AND DEGENERATIVE CHANGES, | |||
NEGATIVE FOR CHORIOAMNIONITIS. | |||
- THREE VESSEL UMBILICAL CORD WITHIN NORMAL LIMITS. | |||
- PLACENTAL DISC WITH THIRD TRIMESTER VILLI WITHIN NORMAL LIMITS. | |||
</pre> | </pre> | ||
===Not definite=== | ===Not definite=== | ||
<pre> | <pre> | ||
PLACENTA, UMBILICAL CORD AND FETAL MEMBRANES, | PLACENTA, UMBILICAL CORD AND FETAL MEMBRANES, BIRTH: | ||
- EARLY CHORIOAMNIONITIS. | - EARLY CHORIOAMNIONITIS. | ||
- FETAL MEMBRANES WITH FOCAL AMNION CELL DROP-OUT AND RARE PIGMENTED | - FETAL MEMBRANES WITH FOCAL AMNION CELL DROP-OUT AND RARE PIGMENTED | ||
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*[[Placenta]]. | *[[Placenta]]. | ||
*[[Chorioamnionitis]]. | *[[Chorioamnionitis]]. | ||
*[[Meconium peritonitis]]. | |||
*[[Meconium ileus]]. | |||
==References== | ==References== | ||