title: PICA origin aneurysm diagnosed 27 years after microvascular decompression of cranial nerve VII.
abstract: The authors report a case of a posterior inferior cerebellar artery origin aneurysm causing brainstem compression and swallowing difficulty. The patient had an ipsilateral microvascular decompression of cranial nerve VII for hemifacial spasm 27 years prior to the discovery of the aneurysm. The aneurysm was successfully treated endovascularly. A discussion of possible etiologies of the aneurysm's formation is presented.
authors: Departments of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA.
authors: Matthew J
authors: MJ
authors: Tormenti
authors: Ridwan
authors: R
authors: Lin
authors: Brian T
authors: BT
authors: Jankowitz
authors: Michael B
authors: MB
authors: Horowitz
mesh_terms: D000328:Adult; D000368:Aged; D015901:Angiography, Digital Subtraction; D003399:Craniotomy / Q000009:adverse effects; D005154:Facial Nerve / Q000601:surgery*; D005260:Female; D019569:Hemifacial Spasm / Q000601:surgery; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging / Q000209:etiology / Q000628:therapy*