Lipoma on surface of centroparietal lobes.

A 4-year-old Japanese boy with an intracranial lipoma above the surface of the left centroparietal lobes is reported. Paresthesia occurred in the right lower extremity. This symptom continued for 30 min and recurred several times a day. Three weeks after onset, the paresthesia disappeared spontaneously. Ten months after onset, generalized tonic seizures occurred. Routine cranial computed tomography at onset revealed no remarkable lesion, but subsequently full scans, including the slice at the top of the cerebrum, revealed low-density areas on the surface of the left centroparietal lobes. T1-weighted magnetic resonance imaging revealed a hyperintense area in the same regions. The intensity of these areas was decreased by the fat saturation technique; therefore, an intracranial lipoma at a very rare site was diagnosed.