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KMID : 0848020000030010042
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Journal of Korean Breast Cancer Society
2000 Volume.3 No. 1 p.42 ~ p.50
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The Role of Needle Localization Breast Biopsy for the Diagnosis of Nonpalpable Breast Cancer
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박해린/Hai Lin Park
남석진/한부경/최연현/양정현/Seok Jin Nam/Boo Kyung Han/Yeon Hyeon Choe/Jung Hyun Yang
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Abstract
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Purpose:
Efforts directed at detection of breast cancer have resulted in an increased incidence of nonpalpable mammographic lesions that warrant excisional biopsy. The most common localization method is the needle-localization biopsy. The aims of this study were
to evaluate the effectiveness and the usefulness of needle-localization biopsy in the diagnostic work-up of nonpalpable mammogrpphic abnormalities that are suspected of being cancerous, and to determine the frequency of malignancy detection and the
incidence of noninvasive carcinoma.
Materials and Methods:
One hundred seventy eight needle-localization biopsies of nonpalpable brest lesions were performed at Samusng Medical Center from January 1995 to December 1999. A retrospective review was undertaken to assess histopathologic findings based on
mammographic abnormalities, as well as the pathologica staging and the treatment of breast cancer detected by needle-localization biopsy.
Results:
Needle-localization biopsies led to the diagnosis of malignancy in 29.8% of the biopsies. Of the malignancies detected, 81.2% were in-situ carcinoma. Invasive carcinoma were less than 2§? in size(T1) in 70% of the cases and were 2 to 5§?(T2) in 30% of
the cases; there were no evidence of lymph node metastases in 70% of the cases. Overall, 90.6% of the patients were found to be within pathologic stage 0 or stage 1. Microcalcifications only were more related with DCIS than mass density with or without
microcalcifications findings. Fine linear, branching, granular, plemorphic microcalcifications findings and ill defined, irregular, spiculated mass densities were likely to result in higher rate of malignancy.
Conclusion:
It is concluded that needle-localization breast biopsy of nonpalpable suspicious mammographic lesions is an important and effective method for the detection of early breast cancer and noninvasive carcinomas. Appropriate selection of cases for needle
localization biopsy should be made to avoid unnecessary breast biopsies and to increase the percentage of early breast cancer.
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KEYWORD
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