方法：采用PCRSSCP法检测血管网织细胞瘤中VHL基因的突变率及甲基化，敏感限制性内切酶消化法检测血管网织细胞瘤中VHL基因的异常甲基化率。
Methods: The hypermethylation was examined by methyl sensitive restrictive DNA endoenzyme analysis in 34 cases of angioreticuloma and the VHL gene mutations detected by PCR SSCP analysis.
方法：采用PCRSSCP法检测血管网织细胞瘤中VHL基因的突变率及甲基化，敏感限制性内切酶消化法检测血管网织细胞瘤中VHL基因的异常甲基化率。
Methods: The hypermethylation was examined by methyl sensitive restrictive DNA endoenzyme analysis in 34 cases of angioreticuloma and the VHL gene mutations detected by PCR SSCP analysis.
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