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目的进一步提高对血管母细胞瘤MRI表现的认识。方法搜集经手术病理证实的血管母细胞瘤43例,对其MRI表现进行回顾性分析。结果血管母细胞瘤常位于小脑半球及蚓部,其它部位少见。可多发和伴发腹部脏器病变。大囊小结节征是囊型血管母细胞瘤的特征表现,其MRI信号在平扫各加权像上均高于脑脊液信号;实质型信号强度在T2加权像上随TE时间延长而升高,瘤内及周围可见血管流空信号。增强扫描有助于病灶的检出和定性诊断。结论MRI是诊断血管母细胞瘤的有效检查方法,但需与囊型胶质瘤、单纯囊肿、脑膜瘤、AVM等鉴别。
Objective To further improve the understanding of hemangioblastoma MRI findings. Methods Forty-three patients with hemangioblastoma confirmed by pathology were retrospectively analyzed. The results of hemangioblastoma often located in the cerebellum and vermis, rare in other parts. May be multiple and associated with abdominal organ disease. Large capsule nodules are cystic hemangioblastoma characteristic manifestations of the MRI signal in the scan of the weighted images were higher than cerebrospinal fluid signal; substantial signal intensity in the T2-weighted images with the increase of TE time, Visible vascular flow empty signal inside and around the tumor. Enhanced scan helps to detect and diagnose lesions. Conclusion MRI is an effective method for the diagnosis of hemangioblastoma, but it should be differentiated from cystic glioma, simple cyst, meningioma and AVM.