Benign papillomas without atypia diagnosed on core needle biopsy: experience from a single institution and proposed criteria for excision.

The management of benign papilloma (BP) without atypia identified on breast core needle biopsy (CNB) is controversial. We describe the clinicopathologic features of 80 patients with such lesions in our institution, with an upgrade rate to malignancy of 3.8%. A multidisciplinary approach to select patients for surgical excision is recommended.