NCIt definition : A ring of karyorrhectic debris that may exhibit dystrophic mineralization and/or identifiable
fetal neutrophil infiltrate in Wharton's jelly that is oriented towards the amniotic
surface. The cord has a denser ring externally and a fainter ring centrally.;
Alternative definition : NICHD: A ring of karyorrhectic debris that may exhibit dystrophic mineralization and/or
identifiable fetal neutrophil infiltrate in Wharton's Substance that is oriented towards
the amniotic surface. The cord has a denser ring externally and a fainter ring centrally.;