聚乙烯醇颗粒栓塞术后的组织学长期随访。
Histologic long-term follow-up after embolization with polyvinyl alcohol particles.
作者信息
Davidson G S, Terbrugge K G
机构信息
Department of Pathology, Toronto Hospital, Ontario, Canada.
出版信息
AJNR Am J Neuroradiol. 1995 Apr;16(4 Suppl):843-6.
Abstract
A large facial vascular malformation was embolized with polyvinyl alcohol particles twice in 8 years. Resected tissue enabled long-term examination of this material, confirming its chemical inertness and revealing minimal tissue reaction to it apart from calcification. No particle migration, fragmentation, or absorption occurred. There was some recanalization of occluded vessels. Most vessels containing polyvinyl alcohol particles, and all of the larger vessels, were incompletely occluded, with particles becoming embedded in their walls.
摘要
一名大型面部血管畸形患者在8年内接受了两次聚乙烯醇颗粒栓塞治疗。切除的组织便于对该材料进行长期检查，证实了其化学惰性，并显示除钙化外对其组织反应极小。未发生颗粒迁移、破碎或吸收。闭塞血管出现了一些再通。大多数含有聚乙烯醇颗粒的血管以及所有较大的血管均未完全闭塞，颗粒嵌入血管壁。
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