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报道５例臂丛神经源性肿瘤，主要描述其影像学表现。５例中，男性４例，女性１例，年龄３２岁～６６岁，临床症状无特殊。影像学检查方法包括胸部正、侧位片（ｎ＝４），颈椎平片（ｎ＝３），ＣＴ扫描（ｎ＝４）及ＭＲＩ检查（ｎ＝４）。病变位于右侧者４例，左侧１例，均经手术及病理证实，其中神经鞘瘤３例，神经纤维瘤２例。普通Ｘ线表现包括肺尖区肿块（ｎ＝３），椎间孔扩大（ｎ＝１）。ＣＴ所见：肿块呈梭形（ｎ＝２）或哑铃状（ｎ＝２），平扫密度与肌肉ＣＴ值相近，注射造影剂后肿块增强幅度高于肌肉。ＭＲＩ表现：Ｔ１加权像上肿瘤信号与肌肉相近３例，略低于肌肉信号１例；Ｔ２加权像显示病变均为高信号。初步结论：根据病变的分布及上述影像学表现，臂丛神经源性肿瘤可于手术前做出诊断。
Reported 5 cases of brachial plexus neurogenic tumors, the main description of its imaging findings. 5 cases, 4 males and 1 females, aged 32 to 66 years old, no special clinical symptoms. Imaging tests included chest and lateral radiographs (n = 4), cervical plain radiographs (n = 3), CT scans (n = 4) and MRI examinations (n = 4). The lesion was located on the right side in 4 cases and on the left side in 1 case, both of which were confirmed by operation and pathology. Among them, 3 were schwannoma and 2 were neurofibromas. Common X-ray findings included apex mass (n = 3) and intervertebral foramen enlargement (n = 1). CT findings: the mass was fusiform (n = 2) or dumbbell-shaped (n = 2), the density of the buccal mass was similar to the CT value of the muscle, and the contrast enhancement mass was higher than that of the muscle. MRI findings: T1 weighted images of tumor signals and muscle similar to 3 cases, slightly lower than the muscle signal in 1 case; T2 weighted images showed lesions were high signal. Preliminary conclusions: According to the distribution of lesions and the above imaging findings, brachial plexus neurogenic tumors can be diagnosed before surgery.