Animated respiratory movement of a spinal intradural arachnoid cyst visualized by intraoperative ultrasonography

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• 作者：Tomohiro Miyashita ; Hiromi Ataka ; Takaaki Tanno
• 关键词：Spinal intradural arachnoid cyst ; Respiratory movement ; Pulsation ; Ultrasonography ; Thoracic spine
• 刊名：Neurosurgical Review
• 出版年：2015
• 出版时间：April 2015
• 年：2015
• 卷：38
• 期：2
• 页码：391-393
• 全文大小：398 KB
• 参考文献：1. Andrews, BT, Weinstein, PR, Rosenblum, ML, Barbaro, NM (1988) Intradural arachnoid cysts of the spinal canal associated with intramedullary cysts. J Neurosurg 68: pp. 544-549 CrossRef
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  7. Sugiyama, S, Hosoe, H, Yamamoto, T, Miyamoto, K, Yoshida, M, Shimizu, K (2002) Pulsation and cerebrospinal fluid flow in spinal arachnoid cyst; visualization by intraoperative spinal ultrasonography [in Japanese]. Rinsho Seikei Geka 37: pp. 217-223
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• 刊物类别：Medicine
• 刊物主题：Medicine & Public Health
  Neurosurgery
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1437-2320

文摘

This study aims to describe the animated respiratory movement of a spinal intradural arachnoid cyst visualized by intraoperative ultrasonography. A 69-year-old man with a spinal arachnoid cyst of the thoracic spine presented with gait disturbance. Magnetic resonance images showed a mild anterior displacement and flattening of the spinal cord at T4–T5. We performed ultrasonography before incision of the dura during the operation and observed the movement of the cyst consisting of not only pulsation in accordance with the cardiac cycle but also rhythmic expansion and contraction in accordance with the respiratory cycle. In the inspiratory phase, the cyst gradually expanded and pulsated in accordance with the cardiac cycle. In the expiratory phase, the cyst gradually contracted with the same pulsation. After resection of the cyst, the patient’s neurological improvements were excellent. To our knowledge, this is the first report of animated respiratory movement of a spinal arachnoid cyst visualized by intraoperative ultrasonography. Although cine magnetic resonance imaging can detect spinal intradural arachnoid cysts preoperatively, intraoperative ultrasonography is useful for close analysis of their movement and pathology. Considering the dynamic compression mechanism revealed in this study, we think that an early operation should be performed for such cysts.