Placental gross / microscopic abnormalities, nonneoplastic
Subamniotic vernix caseosum

Topic Completed: 1 October 2011

Revised: 18 February 2019

Copyright: 2002-2019,, Inc.

PubMed Search: Placenta vernix caseosa OR subamniotic

Mandolin S. Ziadie, M.D.
Page views in 2018: 250
Page views in 2019 to date: 229
Cite this page: Ziadie MS. Subamniotic vernix caseosum. website. Accessed November 21st, 2019.
Definition / general
  • Minute tears between amnion and chorion allow incorporation of vernix squamous cells between the two layers
Gross description
  • Pale white areas on placental membranes
Microscopic (histologic) description
  • Fibrosis and entrapped squamous cells between amnion and chorion of membranes
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