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Imaging-histologic discordance at percutaneous breast biopsy
L Liberman1, M Drotman, E A Morris
1Breast Imaging Section, Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, New York 10021, USA. libermal@mskcc.org
Cancer
|January 3, 2001
Summary
Imaging-histologic discordance in percutaneous breast biopsies occurred in 3.1% of cases. These discordant findings indicated a high likelihood of carcinoma, necessitating further investigation and potential surgical excision.
Area of Science:
- Radiology
- Pathology
- Oncology
Background:
- Percutaneous breast biopsy is a common diagnostic procedure.
- Assessing imaging-histologic concordance is crucial for accurate diagnosis.
- Discordance may indicate underlying malignancy requiring further evaluation.
Purpose of the Study:
- To determine the frequency of imaging-histologic discordance in percutaneous breast biopsies.
- To evaluate the likelihood of carcinoma in lesions with discordant findings.
- To identify factors influencing discordance rates.
Main Methods:
- A 7-year retrospective review of 1785 percutaneous breast biopsies.
- Biopsies were performed under stereotactic or sonographic guidance.
- Lesions were classified using the Breast Imaging Reporting and Data System (BI-RADS) categories.
- Imaging-histologic discordance was defined as biopsy results not explaining imaging features.
Main Results:
- Imaging-histologic discordance was observed in 3.1% of lesions.
- Discordance rates were higher in early study years and for BI-RADS Category 5 lesions.
- Repeat biopsy of discordant lesions revealed carcinoma in 24.4% of cases.
- Carcinoma prevalence was higher in discordant BI-RADS Category 5 lesions compared to Category 4.
Conclusions:
- Imaging-histologic discordance is an important finding in percutaneous breast biopsies.
- A significant proportion of discordant lesions harbor carcinoma, warranting surgical excision.
- Understanding discordance rates can refine biopsy strategies and patient management.