目的探讨骨血管源性肿瘤的影像学特点，旨在提高其诊断水平。
Objective To explore the imaging features of angiogenic tumors of bones and improve the diagnostic level of this disease.
目的研究小儿原发性肝脏恶性肿瘤中血管内皮生长因子(VEGF)和微血管密度(MVD)的特点。
Objective to study the features of vascular endothelial growth factor (VEGF) expression and microvascular densities (MVD) count in pediatric malignant liver tumors.
材料与方法：报道14例成血管细胞瘤的CT和MRI所见，分析肿瘤的特点。
Materials and Methods: ct and MRI findings in 14 cases of hemangioblastomas were reported and their characteristics were analysed.
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