Source:http://linkedlifedata.com/resource/umls/id/C0238034
NCI: A benign (not cancer), wart-like growth in a milk duct of the breast. It is usually found close to the nipple and may cause a discharge from the nipple. It may also cause pain and a lump in the breast that can be felt. It usually affects women aged 35-55 years. Having a single papilloma does not increase the risk of breast cancer. When there are multiple intraductal breast papillomas, they are usually found farther from the nipple. There may not be a nipple discharge and the papillomas may not be felt. Having multiple intraductal breast papillomas may increase the risk of breast cancer.,NCI: A benign papillary neoplasm that arises anywhere in the ductal system of the breast. It is characterized by fibrovascular structures lined by benign epithelial and myoepithelial proliferations. Intraductal breast papillomas are classified as central, when they arise in large ducts, or peripheral, when they arise in the terminal ductal lobular units.