Malformations of the Telencephalic Commissures

Callosal Agenesis and Related Disorders
  • Charles Raybaud
  • Nadine Girard


“Callosal agenesis” is a misnomer. Modern imaging with magnetic resonance (MRI) allows for a detailed anatomic study of the malformation, and demonstrates that in at least 90% of the cases, absence of the corpus callosum is only part of the disorder: typically, the hippocampal commissure is also missing or incomplete. Therefore, the term “commissural agenesis,” or “agenesis of the (forebrain) commissures” should rather be used [1].


Corpus Callosum Anterior Commissure Septum Pellucidum Cavum Septi Pellucidi Interhemispheric Fissure 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Charles Raybaud
    • 1
  • Nadine Girard
    • 2
  1. 1.Neuroradiology CHU TimoneUniversité de la MéditerranéeMarseilleFrance
  2. 2.Department of Radiology Hospital NordUniversité de la MéditerranéeMarseilleFrance

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