Erosive adenomatosis of the nipple

Erosive adenomatosis of the nipple is a benign lesion that clinically mimics Paget's disease of the nipple but has the histologic features of syringocystadenoma papilliferum. Some cases have been mistaken for intraductal papilloma or well-differentiated adenocarcinoma, and unnecessary mastectomies have been performed. Recognition of this lesion is important because it is benign and conservative excision is curative.