Yaguchi Hiroaki, Takahashi Ikuko, Tashiro Jun, Tsuji Sachiko, Yabe Ichiro, Sasaki Hidenao
Department of Neurology, Hokkaido University Graduate School of Medicine, Sapporo.
Intern Med. 2007;46(8):511-3. doi: 10.2169/internalmedicine.46.6326. Epub 2007 Apr 17.
A 23-year-old man complained of weakness of the right arm that he first noted six years prior to his visit. Neurological examination revealed atrophy and weakness of the triceps and serratus anterior muscle on the right side, which resulted in scapular winging on that side. MRI with neck flexion revealed compression of the cervical cord enabling a diagnosis of flexion myelopathy. Proximal muscle weakness and atrophy in flexion myelopathies including Hirayama disease are extremely rare. Here, we report a case of unilateral, proximal upper limb atrophy with scapular winging, attributed to middle cervical flexion myelopathy.
一名23岁男性主诉右臂无力，他在就诊前6年首次注意到这一症状。神经系统检查发现右侧肱三头肌和前锯肌萎缩及无力，导致该侧肩胛骨翼状突出。颈部前屈的磁共振成像（MRI）显示颈髓受压，从而确诊为前屈型脊髓病。包括平山病在内的前屈型脊髓病出现近端肌肉无力和萎缩极为罕见。在此，我们报告一例因中颈段前屈型脊髓病导致的单侧近端上肢萎缩伴肩胛骨翼状突出的病例。
