sentence: in a few cases , dcis may cause : a lump or thickening in or near the breast or under the arm a change in the size or shape of the breast nipple discharge or nipple tenderness ; the nipple may also be inverted , or pulled back into the breast ridges or pitting of the breast ; the skin may look like the skin of an orange a change in the way the skin of the breast , areola , or nipple looks or feels such as warmth , swelling , redness or scaliness .