"stage 0: lesion is confined to the epidermis, without underlying ductal carcinoma in situ (DCIS) of the breast"
"stage 1: associated with DCIS just beneath the nipple"
"stage 2: associated with extensive DCIS"
"stage 3: associated with invasive ductal carcinoma"
Expected headings
"Staging"
"Malignant epithelial (Paget) cells infiltrate and proliferate in the epidermis, causing an eczema-like rash of the nipple and the areolar skin. There are several histologic variants of Paget disease including:"
"Mammary Paget disease can be undetectable on mammography in ~50% of cases 2. Features that may be evident on mammography include skin thickening, nipple retraction, subareolar or more diffuse malignant microcalcifications, and discrete subareolar mass(es)."