Presentation
History of epilepsy.
Patient Data
Age: 45 years
Gender: Male
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Mild generalized parenchymal volume loss.
Agenesis of the corpus callosum with interhemispheric sulci reaching the roof of third ventricle.
Associated widely spaced and prominent ventricular system, in particular prominence of the trigones (colpocephaly). Hippocampal hypoplasia is also seen bilaterally.
On top of well known "a racing car" sign on axial images, the combination of findings gives "a moose head" sign on coronal T2 images at the level of hippocampi.
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Rudolf the red nose reindeer seen on coronal T2 images in case of corpus callosum agenesis.