The paraffin sections from 20 nipples with Paget's disease (10 central intraductal and 10 invasive ductal carcinomas) were analyzed for human papilloma virus (HPV) DNA of the low- and intermediate/high-risk groups. Polymerase chain reaction (PCR) and dot (slot) blot hybridization were used for the detection of HPV DNA types 6/11/16/18/31/33/35. In addition, we examined the c-erbB-2 oncogene expression in the specimens to differentiate benign cells in the surface epithelium of the nipple and areola from Paget cells. We found that the oncogene expression of the c-erbB-2 displayed a strong signal in the Paget cells. Using PCR and dot (slot) blot hybridization, we could not detect the HPV DNAs that are specific for the low- and intermediate/high risk-groups in the 20 cases of Paget's disease. Our results showed for the first time that this type of virus did not contribute to the pathogenesis of Paget's disease.
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