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Journal of Korean Neurosurgical Society 1995;24(1): 79-83.
Surgical Mangagement of Brainstem Hematoma Caused by Angiographically Occult Vascular Malformation(AOVM).
Jae Sung Ahn, Chang Jin Kim, Yang Kwon, Seung Chul Rhim, Jung Kyo Lee, Byung Duk Kwun, C Jin Whang
Department of Neurological Surgery, Asan Medical Center, Seoul, Korea.
Brain stem hematomas, expecially due to ruptured angiographically occult vascular malformation(AOVM), are of great interest because they are potentially curable. Preoperative diagnosis has been difficult due to poor resolution of CT scans in the posterior fossa region. The advent of MRI has made the identification of the angiographically occult vascular malformation possible before surgical excision. We preset 3 cases of brainstem hematoma due to vascular malformations which wre not visualized by angiography but were diagnosted by MRI. The patients were treated surgically and vascular malformations were confirmed.
Key Words: Brain stem; AOVM; MRI; Surgery
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