The Study of Silver-Binding Nucleolar Organizer Region(Ag NOR) in Benign and malignant Breast Lesions / 昆明医科大学学报

127 cases of benign and malignant breast lesions were observed with silver-binding method of nucleolar organizer region(Ag NOR).The results showed that there is obvious dif- ferenee of Ag NOR counts in nuclei of cells beween benign and malignant lesions and the dis- tributions,sizes and forms of the AgNOR in infiltrating ductal carcinoma and scirrhus among malignant tumors of breast.The higher malignant degree,The more amount of AgNOR the tumor cell has,and The higher proliferation the tumor cell has.This method is useful as a ma- jor assistant criterion to differentiate malignant and benign tumor and to sort the type of breast tumor.