Article ID: 10677
A patient with recurrent episodes of transient dysarthria was described. The episodes with dysarthria were about 10 s in duration and occurred daily for a month and half. Neurologically constant fasciculation was observed in the lateral part of the tongue on the right side. Magnetic resonance cisternography revealed that the right hypoglossal nerve might be compressed by the right posterior inferior cerebellar artery (PICA) at the level of the hypoglossal canals. A daily medication of carbamazepine (400 mg/day) resulted in complete relief of symptoms. These findings support that the episodic dysarthria was due to a hypoglossal neurovascular compression syndrome by PICA.
