Objective And Importance: A unique case of delayed ischemic deficit after resection of a large intracranial dermoid is presented.
Clinical Presentation: A 23-year-old woman, 36 hours after the uneventful gross total resection of a large intracranial dermoid cyst, slowly developed a progressive mixed aphasia and right hemiparesis. Magnetic resonance imaging and magnetic resonance angiography revealed small infarcts of the left putamen and temporal-occipital junction and a vasospastic tapering of the left M1 segment.
Intervention: Angiography confirmed severe vasospastic tapering of the left M1 and M2 segments. Endovascular treatment successfully restored flow in the left superior division. However, the initial attempt at low-pressure dilation of the inferior division led to vessel rupture. Seven months after reoperation for emergent trapping of the M1 segment, the patient made an excellent recovery, with only mild right-hand incoordination.
Conclusion: Ruptured dermoid cysts are a risk for early and delayed cerebral ischemia, and endovascular treatment of dermoid-encased vessels may carry a higher risk for rupture.
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| http://dx.doi.org/10.1227/01.neu.0000048482.27700.3b | DOI Listing |
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