A 61-year-old woman comes to her physician because of a change in the appearance of her right breast over the past 7 months. On physical examination the skin overlying the breast is indurated, roughened, and reddish-orange. There is nipple retraction. The gross appearance of the cut surface of her subsequent mastectomy specimen is shown here. Which of the following is the most likely diagnosis? <image 1> 
['Infiltrating ductal carcinoma', 'Intraductal carcinoma', 'Phyllodes tumor', 'Lobular carcinoma in situ']