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Articles » Central nervous system » Holoprosencephaly » Alobar

2006-04-03-11 Holoprosencephaly © Montilla

Holoprosencephaly, alobar

Lenin Montilla, MD

Merida, Venezuela

This is a 29-year-old woman, G2P1, at 16 weeks and 6 days of gestation. The scan revealed a fetus with alobar holoprosencephaly. It shows the following features:

  • Single ventricle
  • Absence of midline structures
  • Fused thalami

The dissection: the skull...

The brain (the "pancake" form)

Opening of the single ventricle:


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