Is surgical biopsy mandatory in case of atypical ductal hyperplasia on 11-gauge core needle biopsy? A retrospective study of 300 patients.

Background: Atypical ductal hyperplasia (ADH) is diagnosed in 4% to 10% of directional vacuum-assisted stereotactic biopsies (DVABs) performed for microcalcifications. Since the underestimation rate varies from 7% to 36%, surgical excision is still recommended, although some authors have tried to identify a subset of patients who can be spared surgery.

Methods And Results: In this study, we analyzed a retrospective series of 300 patients with ADH on 11-gauge DVAB.