Placenta: Difference between revisions
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→Gross processing: Significant |
→Gross processing: +Roll |
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*Take a '''membrane roll''' and '''cord sections''', before sectioning the placenta | *Take a '''membrane roll''' and '''cord sections''', before sectioning the placenta | ||
*With the fetal surface down on the cutting board, '''cut''' the placenta at 1cm intervals so that it can be reconstructed. | *With the fetal surface down on the cutting board, '''cut''' the placenta at 1cm intervals so that it can be reconstructed. | ||
<gallery mode=packed heights=190px> | |||
File:Making a fetal membrane roll.jpg|thumb|Making a fetal membrane roll. | |||
File:Gross pathology of severe intervillositis.jpg|Placental tissue after cutting, here showing severe intervillositis, with dark red and soggy tissue. | |||
</gallery> | |||
*'''Palpate''' the parencyhmal sections for areas of induration. | *'''Palpate''' the parencyhmal sections for areas of induration. | ||
*Note the '''color''' of the parenchyma and describe any pale areas, cysts, thrombi, increased fibrin, calcifications and infarcts. For possible infarcts, estimate the total amount of infarcted tissue as a percentage of the placental volume. Infarction is clinically significant if it involves at least 5-10% of the placental volume. | *Note the '''color''' of the parenchyma and describe any pale areas, cysts, thrombi, increased fibrin, calcifications and infarcts. For possible infarcts, estimate the total amount of infarcted tissue as a percentage of the placental volume. Infarction is clinically significant if it involves at least 5-10% of the placental volume. | ||