1. 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.
2. 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.