Corpus callosum agenesis with colpocephaly

Case contributed by Townsville radiology training


One week history of behavioural changes and expressive dysphasia. Otherwise normal neurological examination.

Patient Data

Age: 32 years
Gender: Male

Agenesis of corpus callosum is noted with lack of rostrum, genu, body, isthmus and splenium. Colpocephaly is seen with dilatation of the occipital horns bilaterally and prominence of temporal horns.  On the coronal series the lateral ventricles  resemble the Viking helmet of Texas long horn. Absent cingulate sulcus.  Upward extension of the third ventricle  into the inter hemispheric fissure is also noted.  Loculated hyperintense CSF fluid filled areas are noted in the posterior fossa bilaterally.

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Case information

rID: 18384
Published: 4th Jul 2012
Last edited: 16th Jul 2018
Inclusion in quiz mode: Included

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