Musk-antibody positive myasthenia gravis presenting with isolated neck extensor weakness

被引:10
作者
Casasnovas, C. [1 ]
Povedano, M. [1 ]
Jauma, S. [1 ]
Montero, J. [1 ]
Martinez-Matos, J. A. [1 ]
机构
[1] Hosp Univ Bellvitge IDIBELL, Hosp Llobregat, Dept Neurol, Neuromuscular Unit, Barcelona 08907, Spain
关键词
anti-MuSK; seronegative; myasthenia gravis; MG; dropped head; extensor neck weakness;
D O I
10.1016/j.nmd.2007.03.007
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Dropped head sign is characterized by the gradual forward sagging of the head due to weakness of neck extensor muscles. This may be a prominent sign of several neuromuscular disorders and may be an isolated feature of myasthenia gravis (MG). We describe a patient with isolated neck extensor weakness, eletrophysio logical findings suggesting myasthenia gravis and positive MuSK antibodies. This case supports that finding anti-MuSK antibodies may be extremely helpful in dropped head patients and negative acetylcholine receptor antibodies especially if needle EMG does not reveal myopathic or neurogenic patterns. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:544 / 546
页数:3
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