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AJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology 27:648-652, March 2006
© 2006 American Society of Neuroradiology

Case Report
BRAIN

Isolated Posterior Cerebral Artery Dissection: Report of Three Cases

P. Sherman^a, M. Oka^a, E. Aldrich^b, L. Jordan^b and P. Gailloud^a

^a Division of Interventional Neuroradiology The Johns Hopkins Medical Institutions, Baltimore, Md
^b Division of Cerebrovascular Neurology, The Johns Hopkins Medical Institutions, Baltimore, Md

Address correspondence to Paul M. Sherman, MD, Wilford Hall Medical Center, 59MDW/759MDTS/MTRD, 2200 Bergquist Dr, Ste 1, Lackland AFB, TX 78236

SUMMARY: Isolated dissection of the posterior cerebral artery (PCA) is a rare but important cause of stroke in younger patients, particularly women. We present 3 cases of dissection of the P2 segment of the PCA. In 2 patients, an association with minor axial head trauma was documented, suggesting shearing injury of the PCA as it crosses over the free edge of the tentorium. The clinical and imaging findings are discussed, and the therapeutic management is reviewed.

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