A 34-year-old woman noticed a small lump in the center of her left nipple and watched it slowly grow for two years. A mammogram flagged it for closer evaluation. When surgeons removed it, pathologists found not one benign growth but two, including one that neither of her imaging tests had shown.
The case, published in May in the Journal of Surgical Case Reports by surgeons at Corewell Health in Dearborn, Michigan, and Mercy Health in Perrysburg, Ohio, describes a nipple adenoma occurring together with an intraductal papilloma. The authors call the combination extremely rare, with very limited published literature.