Avanzini G, Broggi G, Caraceni T
Eur Neurol. 1977;15(4):194-202. doi: 10.1159/000114833.
Clinical electrophysiological and neuroradiological examination of a case of unilateral intention and action myoclonus is reported. Brachial arteriography revealed an angioma located mainly in the lateral portion of the right posterior thalamus. Clinical and electrophysiological findings suggesting involvement of nonthalamic structures were absent. Our case, together with some cases previously described, raises the possibility that volitional myoclonus may be related to a relatively circumscribed damage of some diencephalic and/or mesencephalic structures. The rare occurrence of a hyperkinetic syndrome as principal symptom of a cerebral vascular malformation should be borne in mind in view of the potential risk of a stereotactic surgical procedure designated to alleviate the involuntary movements.
报告了一例单侧意向性和动作性肌阵挛患者的临床电生理和神经放射学检查情况。肱动脉造影显示一个血管瘤，主要位于右侧丘脑后部外侧。未发现提示非丘脑结构受累的临床和电生理表现。我们的病例以及之前描述的一些病例提示，意向性肌阵挛可能与某些间脑和/或中脑结构的相对局限性损伤有关。鉴于旨在减轻不自主运动的立体定向手术存在潜在风险，应牢记脑血管畸形以运动亢进综合征为主要症状的罕见情况。
