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目的:探讨16排螺旋CT诊断臂丛神经源性肿瘤的价值。方法:回顾性分析经手术病理证实的8例臂丛区神经源性肿瘤患者的16排螺旋CT影像学资料。结果:CT检查示肿瘤位于前及中斜角肌间隙5例,其中2例沿椎间孔伸入椎管内,位于锁骨上窝2例,经胸廓入口突入胸腔1例;肿块约4.5 cm×5.0 cm×4.8 cm大小;呈哑铃形5例,梭形3例;边界不清晰者3例,边界清晰者5例;平扫肿瘤密度等于肌肉2例,密度略低于肌肉6例;5例病变内见低密度影,2例可见小点状钙化,1例高密度区包绕裂隙样低密度区。增强扫描示轻度均匀强化2例,中度强化5例、较明显不均匀强化1例,4例病灶呈缓慢强化特点,4例有囊变病灶者囊变区呈低度强化或无强化,其实性部分不同程度强化。结论:臂丛神经区神经源性肿瘤CT表现典型,有助于术前定位、定性诊断。
Objective: To investigate the value of 16-slice spiral CT in the diagnosis of brachial plexus neurogenic tumors. Methods: The 16-slice spiral CT imaging data of 8 patients with neurogenic tumors of brachial plexus confirmed by surgery and pathology were retrospectively analyzed. Results: The CT examination showed that the tumor was located in the anterior and middle scalene in 5 cases, of which 2 cases extended into the spinal canal along the intervertebral foramina, located in the supraclavicular fossa in 2 cases and penetrated through the thoracic entrance into the chest cavity in 1 case. The tumor size was about 4.5 cm × 5.0 cm × 4.8 cm in size. There were 5 cases of dumbbell shape and 3 cases of fusiform shape. There were 3 cases with unclear boundary and 5 cases with clear boundary. The density of tumor was equal to 2 cases in muscle and 6 cases in density slightly lower than that in muscle. Lesions seen low density, 2 cases showed small punctate calcification, 1 case of high-density area around the crack-like low-density area. Enhanced scan showed mild uniform enhancement in 2 cases, moderate enhancement in 5 cases, more obvious uneven enhancement in 1 case, 4 cases showed slow enhancement characteristics, 4 cases of cystic lesions showed cystic areas showed low or no enhancement, In fact, some enhance the degree of sexuality. Conclusion: The CT manifestations of neurogenic tumors in the brachial plexus are typical and helpful for preoperative localization and qualitative diagnosis.