|
FIG 2. MR images of a fetus after therapeutic abortion at 18 weeks because of a sonographic diagnosis of alobar holoprosencephaly. Autopsy could not provide any information because of the poor state of the unfixed brain.
A, Axial and B, coronal brain MR images confirm the typical features of alobar holoprosencephaly: nonseparated cerebral hemispheres, holoventricle, and fused thalami. Note the single, poorly formed orbit (cyclopia) (arrow) and an azygous anterior cerebral artery (arrowheads).
|