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目的 总结5例臂丛神经周围占位性病变误诊的临床经验.方法 2009年11月至2014年7月,我们共收治5例以臂丛神经麻痹为主要临床表现的患者.主要表现均为单侧上肢运动感觉障碍伴肌肉萎缩.其中右侧2例,左侧3例.全臂丛神经麻痹2例,单纯下干麻痹2例,束支部麻痹1例.入院前曾误诊为颈椎病、肩周炎或胸廓出口综合征等.结果 本组患者入院后通过影像学检查及手术探查证实为纤维瘤病2例,淋巴瘤1例,左锁骨下动脉瘤破裂1例,乳腺癌转移1例.结论 臂丛神经近段麻痹的诊断应重视影像学检查,临床上对于症状不典型的病例应考虑肿瘤等占位性病变的诊断.“,”Objective To summarize the experiences of 5 misdiagnosed cases of occupancy lesions by brachial plexus palsy.Methods From November 2009 to July 2014,5 cases of brachial plexus paralysis were admitted in our department.All patients suffered from unilateral upper limb movement and sensory disorder associated with muscle atrophy as the main clinical manifestations.2 cases were affected on the right side,and 3 cases on left.2 cases showed symptoms of total brachial plexus palsy,2 inferior trunk paralyses and 1 bundlebranch disorder.All patients were misdiagnosed as cervical spondylosis,scapulohumeral periarthritis or thoracic outlet syndromes.Results After admission,definite diagnosis of every patient was made by radiographic examination and operation.2 cases were fibromatosis.1 case was lymphoma.1 case was left subclavian artery aneurysms rupture.And 1 case was breast cancer metastasis.Conclusion The value of radiographic examination should be taken seriously in diagnosing the proximal brachial plexus palsy.Space-occupying lesions such as tumor should be considered in the case with atypical symptoms.