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目的 分析颅内血管外皮细胞瘤的磁共振影像表现。方法 选取经手术病理证实的颅内血管外皮细胞瘤 2 7例 ,男 1 6例 ,女 1 1例 ,所有病例均进行了MR检查 ,回顾分析其MR影像表现。结果 颅内血管外皮细胞瘤在MR影像表现上有如下特点 :(1 )肿瘤主要表现为等长T1 、等长T2 混杂信号影 ,偶可见短T1 或短T2 信号影 ,注药后 ,肿瘤增强明显但不均匀 ;(2 )外形呈不规则分叶状 ;(3)半数以上的肿瘤与硬膜窄基底相连 ;(4)肿瘤内常可见血管流空影而见不到钙化影 ;(5)肿瘤附近骨质可见破坏而见不到增生硬化。结论 颅内血管外皮细胞瘤有比较典型的MR影像特点 ,结合临床表现有助于其术前正确诊断
Objective To analyze the magnetic resonance imaging of intracranial hemangiopericytoma. Methods Twenty-seven patients with intracranial hemangiopericytoma confirmed by surgery and pathology were selected, including 16 males and 11 females. MR imaging was performed in all cases and MR imaging was retrospectively analyzed. Results Intracranial hemangiopericytoma showed the following features in MR imaging: (1) The tumor mainly showed isometric T1, isometric T2 mixed signal, even short T1 or short T2 signal, the tumor was enhanced after injection (3) More than half of the tumors are connected to the dura mater with a narrow basement; (4) Vascular flow is often seen in the tumor with no signs of calcification; (5) ) Visible bone destruction near the tumor and see no proliferation and sclerosis. Conclusion Intracranial hemangiopericytoma has the typical characteristics of MR imaging, combined with clinical manifestations contribute to the correct diagnosis before surgery