Hemifacial Spasm due to Compression of the Posterior Inferior Cerebellar Artery Aneurysm Treated with Botulinum Toxin Type-A : A Case Report

الملخص EN

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.