Mammary Paget's Disease/Definition
Mammary Paget's Disease :
An intraductal carcinoma of the breast extending to involve the nipple and areola, characterized clinically by eczema-like inflammatory skin changes and histologically by infiltration of the dermis by malignant cells (Paget's cells).
This definition is at least in part based on: Anonymous (2015), Mammary Paget's Disease (English). Medical Subject Headings. U.S. National Library of Medicine.