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What are the two types of pericallosal lipoma, and which is this?
Curvilinear and tubonodular. This is an example of the latter.
What is the appearance of the ventricles in coronal projection known as?
Moose head or Viking helmet sign.
Selected images from an MRI of the brain demonstrate dysgenesis of the corpus callosum with an inter-hemispheric fatty mass entering the lateral ventricles which have a viking helmet or moose head configuration. The anterior cerebral artery and branches can be seen coursing through the superior aspect of the mass.