hydranencephaly

• probably 2' to ICA occlusion in utero; may be developmental
• normal or enlarged head
• +/- neurologically normal

• CT findings:
  • small areas of cortex, usually occipital
  • basal ganglia + cerebellum normal
  • ventricles have no roof

• may resemble severe hydrocephalus
  • angio ==> sparse, atretic vessels
    • vs. stretched vessels in hydrocephalus

© 2002, C.E. Kahn, Jr.
2002-04-18