label: Breast intraductal papilloma
label_lc: breast intraductal papilloma
description: "Intraductal papilloma is a benign tumor found within breast ducts. The abnormal proliferation of ductal epithelial cells causes growth. A solitary intraductal papilloma is usually found centrally posterior to the nipple affecting the central duct. Multiple intraductal papillomas are located peripherally, found in any breast quadrant affecting the peripheral ducts."