Five cases of intracranial lipoma; CT and magnetic resonance images]

We encountered five cases of intracranial lipoma after introduction of MRI. They were located in the quadrigeminal plate, interpeduncular fossa, pineal region and two of them were found in the cerebellopontine angle, (although intracranial lipoma in this location has been reported to be extremely rare). MRI can precisely locate a small lesion that would be overlooked by CT scans. Operative treatment was performed in two symptomatic cases (CP angle and pineal lesions) and the tumors were subtotally resected. The symptoms of the patients disappeared postoperatively. This indicated that even subtotal removal can alleviate the symptoms of intracranial lipomas and that favorable results can be obtained.