脑内毛细血管瘤的MRI表现(附3例报告)

Brain Capillary Hemangioma:MR Imaging Findings(3 Cases Report)

目的探讨脑内毛细血管瘤的MRI影像特点。资料与方法结合文献分析3例脑内毛细血管瘤患者的临床、病理及MRI表现。结果额叶2例,脑干1例。病变表现为囊性占位及瘤周水肿,3例均形成囊壁(手术证实)。病变在T1WI及T2WI上信号变化多样,与是否合并出血及不同时期的出血相关,增强后囊壁等实性成分呈明显强化。结论脑内毛细血管瘤罕见。肿瘤在MRI上具有相对特征性的表现。

Objective To explore the MR findings of brain capillary hemangioma. Materials and Methods Three cases of brain capillary hemangioma were reviewed to study the clinical manifestations, pathology and MR findings. Resuits Three lesions located in prefrontal, one in brainstem. These lesions usually showed as mild space-occupying cysts with perifocal edema. All three lesions had cyst wall confirmed by operation. The signal intensity of lesions was depend on hemorrhage or not. On contrast-enhanced Tt -weighted images, the solid ingredients of lesions showed strong inhomogeneous enhancement. Conclusion Brain capillary hemangiomas have characteristics on MR images for diagnosis.