Shoulder-arm pain from cervical bands and scalene muscle anomalies

摘要: Fourteen patients were identified with (1) pain and sensory changes in a brachial plexus distribution, (2) aggravation of use the affected extremity, (3) on palpation over plexus. All had minimal or no intrinsic hand muscle atrophy. Only one patient cervical ribs. Nerve conduction studies normal, electromyography (EMG) showed mild chronic neuropathic 2 patients. None responded to conservative therapy prolonged period (7-12 months). A compressive plexopathy from abnormally attached enlarged scalene muscles that both upper lower trunks was found at surgery all In 13 patients, least fibrous band compressed trunk Therefore, neurogenic thoracic outlet syndrome can occur bands anomalies without atrophy, ribs, C7 transverse processes, EMG abnormalities.