Open AccessBilateral Spontaneous Dissection of the Posteroinferior Cerebellar Arteries: Case Report
Author(s) -
Sachiko Shinoda,
Hiroto Murata,
Shiro Waga,
Tadashi Kojima
Publication year - 1998
Publication title -
neurosurgery/neurosurgery online
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.485
H-Index - 34
eISSN - 1081-1281
pISSN - 0148-396X
DOI - 10.1097/00006123-199808000-00111
Subject(s) - medicine , subarachnoid hemorrhage , posterior inferior cerebellar artery , pica (typography) , aneurysm , dissection (medical) , hematoma , autopsy , cerebellar artery , stenosis , surgery , radiology , vertebral artery , cerebral angiography , angiography , world wide web , computer science
Cervicocerebral arterial dissections occur when blood extrudes into the wall of an artery supplying the brain. The resulting intramural hematoma may compromise the lumen and cause an aneurysmal dilation. Dissecting aneurysms are now recognized with increasing frequency as a cause of strokes. They usually occur spontaneously or are associated with trivial trauma to the artery. A dissecting aneurysm of the posteroinferior cerebellar artery (PICA) is very rare, however. We present a case with ischemic episode and successive subarachnoid hemorrhage caused by bilateral dissection of the PICAs.