RESUMEN
Purpose:To study the pathological characteristics of breast duct diseases with nipple discharge under breast duct endoscope and improve diagnostic accuracy.Methods:354 patients with nipple discharge were examined by fiberoptic duct endoscope (FVS 3000M), to investigate the suspected duct with its branch and detemine the location and extent of intraductal lesions, core biopsy can be done in suspicious leisions.Results:245 patients were found to have intraductal space occupying lesions, 97 patients were found to have exudative lesions, normal duct in 9 cases.186 cases underwent surgery, diagnosis was confirmed by pathology in 96.2%.Conclusions:Fiberoptic duct endoscopy can locate accurate site and pathogeny of nipple discharge ,to allow improvement in diagnosis of early breast cancer.