A 43-year-old woman comes to the physician for a 1-week history of rusty colored discharge from her left nipple. She can manually induce the discharge. In addition, she finds there to be discharge even without manual expression. Which of the following is the most likely explanation for this patient’s findings?
A) Ductal carcinoma in situ
B) Ductal carcinoma (invasive)
C) Intraductal papilloma
D) Lobular carcinoma
E) Sclerosing adenosis

