title: Hemifacial Spasm due to Compression of the Posterior Inferior Cerebellar Artery Aneurysm Treated with Botulinum Toxin Type-A: A Case Report.
abstract: A 79-year-old female presented with five months history of progressive involuntary twitching movement on left face. Brain MR imaging revealed a heterogeneous T2 hyperintense lesion at left cerebellopontine angle. CT angiography showed a partially thrombosed saccular aneurysm of left PICA (posterior inferior cerebellar artery). The patient was treated with Botulinum toxin type A and almost total relief of symptoms was noticed during one month followup. Botulinium toxin injection is an effective symptomatic treatment option in nonsurgical secondary hemifacial spasm (HFS) cases.
authors.affiliation: Department of Neurology, Medical Faculty, Bezmialem Vakif University, Istanbul, Vatan Caddesi 34093 Fatih, Turkey.
authors.forename: Azize Esra
authors.initials: AE
authors.lastname: Gürsoy
authors.forename: Gülsen
authors.initials: G
authors.lastname: Babacan Yildiz
authors.forename: Adam Mehmet
authors.initials: AM
authors.lastname: Gülhan
authors.forename: Mehmet
authors.initials: M
authors.lastname: Kolukisa