Dysgenesis of corpus callosum

Discussion:

This case apparently appears as complete agenesis, and probable intraventricular arachnoid cyst in the left lateral ventricle and possible small arachnoid cyst in the right middle cranial fossa. However, MRI is the modality of choice in evaluating both the corpus callosum and the frequently associated anomalies.

Dysgenesis of the corpus callosum may be complete (agenesis) or partial and represents an in utero developmental anomaly. It can be divided into:

  • primary agenesis: the corpus callosum never forms
  • secondary dysgenesis: the corpus callosum forms normally and is subsequently destroyed.

 

This case is also contributed by Dr. Mohammad Tahir Aien.

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