Foregeard C, Benchaib M, Guerin N, Thiesse P, Mignotte H, Faure C, Clement-Chassagne C, Treilleux I
Is surgical biopsy mandatory in case of atypical ductal hyperplasia on 11-gauge core needle biopsy? a retrospective study of 300 patients. [JOURNAL ARTICLE]
Am J Surg 2008 Jun 27.
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. The only 4 events that occurred (3%) in 135 of 184 patients (61%) who were followed may not be due to underestimation. Comparing the diagnoses on DVAB and surgical excisions for 116 patients (39%), we identified 3 subsets of patients: no underestimation (size <6 mm and complete removal), low rate of 4% (</=2 foci ADH in microcalcifications either <6 mm with incomplete removal or >/=6 mm and <21 mm), and high rate of 36% to 38% (>2 foci ADH in microcalcifications either <6 mm with incomplete removal or >/=6 mm and <21 mm, lesion size >/=21 mm).
CONCLUSIONS: Our results suggest that strict follow-up can be a safe option for the first 2 groups of patients, but that surgical excision is mandatory for patients from the third group.
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