Sherman P, Oka M, Aldrich E, Jordan L, Gailloud P
Division of Interventional Neuroradiology The Johns Hopkins Medical Institutions, Baltimore, MD, USA.
AJNR Am J Neuroradiol. 2006 Mar;27(3):648-52.
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.
大脑后动脉（PCA）孤立性夹层是年轻患者，尤其是女性中风的一种罕见但重要的病因。我们报告3例PCA P2段夹层病例。在2例患者中，记录到与轻微轴向头部外伤有关，提示PCA在越过小脑幕游离缘时发生剪切损伤。讨论了临床和影像学表现，并回顾了治疗处理方法。
