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
This definition is at least in part based on: Anonymous (2020), Mammary Paget's disease (English). Medical Subject Headings. U.S. National Library of Medicine.