J Korean Neurosurg Soc.  1999 Mar;28(3):363-367.

Hemifacial Spasm Associated with Benign Cyst

• Park CF
• Rhee BA
• Park JT
• Lim YJ
• Kim TS
• Leem W
• Kim GK

Abstract

Hemifacial spasm associated with benign cyst of cerebellopontine angle masses have very rarely been reported from 0.4% to 4.3% in the literature. We report two cases with benign choroid plexal cyst of cerebellopontine angle which believed to be causes of hemifacial spasm. Operating findings and results revealed that one cyst produced deviation of the ipsilateral PICA and the other cyst produced deviation of the AICA and internal auditory artery, which we re secondarily in contact with the REZ of the facial nerve. Cyst removal along with microvascular decompressions were done in these patients. Postoperatively, they were completely relieved of symptom.

Keyword

Hemifacial spasm; Benign choroid plexal cyst; Cerebellopontine angle; Microvascular decompression

MeSH Terms

Arteries
Cerebellopontine Angle
Choroid
Facial Nerve
Hemifacial Spasm*
Humans
Microvascular Decompression Surgery
Pica