Presentation
Paroxysmal headache for about 4 months, predominantly in the occipital region. No history of fever, vomiting or loss of consciousness.
Patient Data
There is a thin (3 mm), elongated, curvilinear hypodense area of fat attenuation (-35 HU) along the superior margin of the corpus callosum posteriorly.
Tiny foci of falx calcification seen.
Brain parenchyma shows normal attenuation. Ventricular system and cisterns are normal.
No midline shift.
Polypoidal mucosal thickening in the right maxillary sinus.
Case Discussion
A common location for intracranial lipomas is in the superior margin of the corpus callosum, called pericallosal lipoma (45%). According to the morphologies pericallosal lipoma are of two types viz, tubonodular (common) and curvilinear. The case represents a curvilinear type.
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