摘要
目的探讨后颅窝实质性血管母细胞瘤的磁共振(MRI)特征性表现以及手术治疗方法分析,提高对该病的诊断和手术治疗水平。方法回顾性分析手术治疗的5例后颅窝实质性血管母细胞瘤患者的MRI表现、术中所见及病理切片情况。结果 MRI显示肿瘤形状呈圆形或类圆形,肿瘤T1WI呈低信号、等信号改变,T2WI呈稍高信号改变,瘤内及瘤周可见大量血管流空影。术中可见肿瘤血供丰富,回流静脉聚集在表面,供血动脉位于深部和两侧。病理切片可见肿瘤由毛细血管及血窦组成。结论后颅窝实质性血管母细胞瘤的MRI表现具有显著特征,术前可以明确诊断,采用正确的显微手术处理原则及熟练的手术技巧可提高手术治疗效果。
Objective To investigate the characteristic appearances of MRI and surgical treatment of the posterior fossa solid hemangioblastomas （ PFSHs） ,in order to improve the diagnosis ability and surgical efficacy for this disease.Methods The MRI findings of 5 patients verified by surgery and pathology were analyzed retrospectively.Results Preoperative MRI showed the tumors were round or pararound in shape,slight hypointense or isointense on T1WI ,and slightly hyperintense on T2WI. Unusual enlarged vascular flow void signals could be seen within or around the tumors. During the operation,the tumor were found to be highly vascular lesions,with draining veins aggregating on the surface and supplying artery located at the deep part and bilateral side. The tumor was composed of capillaries and blood sinusoid seen on pathological section.Conclusion MRI findings of posterior fossa hemangioblastomas are characteristic and the disease can be preoperatively diagnosed. The application of special microsurgical technique and improvement of operative manipulation can improve the surgical efficacy.
出处
《海南医学》
CAS
2010年第16期24-25,9,共3页
Hainan Medical Journal
