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目的 通过对 4 5例经病理证实的血管网织细胞瘤的影像分析 ,对肿瘤的影像表现及鉴别诊断做一总结。方法 所有病例术前分别经过脑MR、CT及DSA检查 ,并对肿瘤的信号、形态大小及增强后的信号进行对比。结果 3 1例肿瘤可见囊腔 ,肿瘤实质部分MR、CT可见等T1等T2 信号或等或稍低密度影。囊性部分可见长T1长T2 信号或低密度信号。注药后可见肿瘤实质部分增强。 4 1例均可见肿瘤DSA染色。结论 血管网织细胞瘤具有显著特异性。应与室管膜瘤、囊性星行细胞瘤等相鉴别。
Objective To summarize the imaging findings and differential diagnosis of 45 cases of pathologically confirmed hemangioblastoma. Methods All patients underwent brain MR, CT, and DSA examinations before surgery. The tumor signals, morphology, and enhanced signals were compared. RESULTS: The cystic cavity was seen in 31 cases of tumors. The T2 signals such as T1, etc., or equal or slightly low density shadows were found in MR and CT of the tumor. The cystic portion shows a long T1 long T2 signal or a low density signal. After the injection, the substantial part of the tumor was enhanced. Tumor DSA staining was seen in all 41 cases. Conclusion Vascular reticuloma has significant specificity. Should be differentiated from ependymoma and cystic astrocytic tumors.