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Rates of reexcision for breast cancer after magnetic resonance imaging-guided bracket wire localization.
J Am Coll Surg. 2005 Apr; 200(4):527-37.JA

Abstract

BACKGROUND

We performed this study to determine rates of close or transected cancer margins after magnetic resonance imaging-guided bracket wire localization for nonpalpable breast lesions.

STUDY DESIGN

Of 243 women undergoing MRI-guided wire localizations, 26 had MRI bracket wire localization to excise either a known cancer (n = 19) or a suspicious MRI-detected lesion (n = 7). We reviewed patient age, preoperative diagnosis, operative intent, mammographic breast density, MRI lesion size, MRI enhancement curve and morphology, MRI Breast Imaging Reporting and Data System (BI-RADS) assessment code, number of bracket wires, and pathology size. We analyzed these findings for their relationship to obtaining clear margins at first operative excision.

RESULTS

Twenty-one of 26 (81%) patients had cancer. Of 21 patients with cancer, 12 (57%) had negative margins at first excision and 9 (43%) had close/transected margins. MRI size > or = 4 cm was associated with a higher reexcision rate (7 of 9, 78%) than those < 4 cm (2 of 12, 17%) (p = 0.009). MRI BI-RADS score, enhancement curve, morphology, and preoperative core biopsy demonstrating ductal carcinoma in situ (DCIS) were not predictive of reexcision. The average number of wires used for bracketing increased with lesion size, but was not associated with improved outcomes. On pathology, cancer size was smaller in patients with negative margins (12 patients, 1.2 cm) than in those with close/transected margins (9 patients, 4.6 cm) (p < 0.001). Reexcision was based on close/transected margins involving DCIS alone (6, 67%), infiltrating ductal carcinoma and DCIS (2, 22%), or infiltrating ductal carcinoma alone (1, 11%). Reexcision pathology demonstrated DCIS (3, 33%), no residual cancer (5, 55%), and 1 patient was lost to followup (1, 11%). Interestingly, cancer patients who required reexcision were younger (p = 0.022), but breast density was not associated with reexcision.

CONCLUSIONS

To our knowledge, this is the first report of MRI-guided bracket wire localization. Patients with MRI-detected lesions less than 4 cm had clear margins at first excision; larger MRI-detected lesions were more likely to have close/transected margins. Reexcision was often because of DCIS and was the only pathology found at reexcision, perhaps because MRI is more sensitive for detecting invasive carcinoma than DCIS.

Authors+Show Affiliations

Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15804466

Citation

Wallace, Anne Marie, et al. "Rates of Reexcision for Breast Cancer After Magnetic Resonance Imaging-guided Bracket Wire Localization." Journal of the American College of Surgeons, vol. 200, no. 4, 2005, pp. 527-37.
Wallace AM, Daniel BL, Jeffrey SS, et al. Rates of reexcision for breast cancer after magnetic resonance imaging-guided bracket wire localization. J Am Coll Surg. 2005;200(4):527-37.
Wallace, A. M., Daniel, B. L., Jeffrey, S. S., Birdwell, R. L., Nowels, K. W., Dirbas, F. M., Schraedley-Desmond, P., & Ikeda, D. M. (2005). Rates of reexcision for breast cancer after magnetic resonance imaging-guided bracket wire localization. Journal of the American College of Surgeons, 200(4), 527-37.
Wallace AM, et al. Rates of Reexcision for Breast Cancer After Magnetic Resonance Imaging-guided Bracket Wire Localization. J Am Coll Surg. 2005;200(4):527-37. PubMed PMID: 15804466.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Rates of reexcision for breast cancer after magnetic resonance imaging-guided bracket wire localization. AU - Wallace,Anne Marie, AU - Daniel,Bruce L, AU - Jeffrey,Stefanie S, AU - Birdwell,Robyn L, AU - Nowels,Kent W, AU - Dirbas,Frederick M, AU - Schraedley-Desmond,Pamela, AU - Ikeda,Debra M, PY - 2004/08/26/received PY - 2004/11/23/revised PY - 2004/12/09/accepted PY - 2005/4/5/pubmed PY - 2005/6/2/medline PY - 2005/4/5/entrez SP - 527 EP - 37 JF - Journal of the American College of Surgeons JO - J Am Coll Surg VL - 200 IS - 4 N2 - BACKGROUND: We performed this study to determine rates of close or transected cancer margins after magnetic resonance imaging-guided bracket wire localization for nonpalpable breast lesions. STUDY DESIGN: Of 243 women undergoing MRI-guided wire localizations, 26 had MRI bracket wire localization to excise either a known cancer (n = 19) or a suspicious MRI-detected lesion (n = 7). We reviewed patient age, preoperative diagnosis, operative intent, mammographic breast density, MRI lesion size, MRI enhancement curve and morphology, MRI Breast Imaging Reporting and Data System (BI-RADS) assessment code, number of bracket wires, and pathology size. We analyzed these findings for their relationship to obtaining clear margins at first operative excision. RESULTS: Twenty-one of 26 (81%) patients had cancer. Of 21 patients with cancer, 12 (57%) had negative margins at first excision and 9 (43%) had close/transected margins. MRI size > or = 4 cm was associated with a higher reexcision rate (7 of 9, 78%) than those < 4 cm (2 of 12, 17%) (p = 0.009). MRI BI-RADS score, enhancement curve, morphology, and preoperative core biopsy demonstrating ductal carcinoma in situ (DCIS) were not predictive of reexcision. The average number of wires used for bracketing increased with lesion size, but was not associated with improved outcomes. On pathology, cancer size was smaller in patients with negative margins (12 patients, 1.2 cm) than in those with close/transected margins (9 patients, 4.6 cm) (p < 0.001). Reexcision was based on close/transected margins involving DCIS alone (6, 67%), infiltrating ductal carcinoma and DCIS (2, 22%), or infiltrating ductal carcinoma alone (1, 11%). Reexcision pathology demonstrated DCIS (3, 33%), no residual cancer (5, 55%), and 1 patient was lost to followup (1, 11%). Interestingly, cancer patients who required reexcision were younger (p = 0.022), but breast density was not associated with reexcision. CONCLUSIONS: To our knowledge, this is the first report of MRI-guided bracket wire localization. Patients with MRI-detected lesions less than 4 cm had clear margins at first excision; larger MRI-detected lesions were more likely to have close/transected margins. Reexcision was often because of DCIS and was the only pathology found at reexcision, perhaps because MRI is more sensitive for detecting invasive carcinoma than DCIS. SN - 1072-7515 UR - https://www.unboundmedicine.com/medline/citation/15804466/Rates_of_reexcision_for_breast_cancer_after_magnetic_resonance_imaging_guided_bracket_wire_localization_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1072-7515(04)01545-5 DB - PRIME DP - Unbound Medicine ER -