Malignant and benign papillary lesions of the breast.

摘要: Abstract This presentation describes criteria that we found most helpful in classifying the various proliferative changes of breast and separating papillary carcinoma from other benign lesions. The used are easily understood extremely reproducible. true incidence fibrocystic disease significance these lesions later development cancer were determined by studying 200 randomly selected cases seen at least 10 years earlier. Of disease, 40 showed intraductal papillomatosis or terminal duct hyperplasia. None patients with for whom have complete follow-up data (up to 14 years) developed cancer. In order determine type proliferating cells lesions, some recently encountered studied transmission scanning electron microscopy histochemistry. Our ultrastructural histochemical study suggests both epithelial myoepithelial participate breast.