Journal
EUROPEAN RADIOLOGY
Volume 21, Issue 6, Pages 1200-1206Publisher
SPRINGER
DOI: 10.1007/s00330-010-2053-7
Keywords
Borderline breast lesions; B3 lesions; Papilloma; Core needle biopsy; Vacuum assisted biopsy
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To compare malignancy underestimation rates in the case of percutaneous diagnosis of borderline breast lesions(B3) at 14-g core-needle-biopsy (CNB) and at 11-g vacuum-assisted-biopsy (VAB). The histological results of 4764 image-guided breast biopsies were retrospectively reviewed. 300 B3, 151 benign papillomas, 88 radial sclerosing lesions, 46 lobular neoplasia, 15 atypical ductal hyperplasia diagnosed at ultrasound-guided 14-g CNB (76%) or stereotactically-guided 11-g VAB (24%) were identified. On average, 5 cores were obtained with CNB and 12 with VAB. Biopsy variables were reviewed and correlated with surgical excision or follow-up (> 24 months). Lesion- and device-specific underestimation rates of malignancy were calculated. Surgical excision was performed on 237 lesions: 178 were benign, 21 atypical, 38 cancers. The remaining 63 lesions were unchanged at follow-up. Overall malignancy underestimation rate was 12.7% at 14-g CNB and 12.5% at 11-g VAB. Based on excision histology or follow-up, lesion-specific underestimation rates were: benign papillomas: 14-g CNB 11%, 11-g VAB 0%; RSL: 14-g CNB 6%, 11-g VAB 4%; LN: 14-g CNB 40%, 11-g VAB 23%; ADH: 14-g CNB 33%; 11-g VAB 22%. In the case of percutaneous diagnosis of B3 lesions, underestimation of malignancy occurs regardless of the biopsy method.
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