Abstract:
PURPOSE:Insertion of radiopaque markers is helpful for tumor localization in patients receiving neoadjuvant chemotherapy (NAC) followed by breast-conserving surgery (BCS). The aim of this retrospective study was to investigate the pathologic margin status in patients with single or double marker insertion. METHODS:We reviewed the records of 130 patients with marker insertion prior to NAC followed by BCS from January 2016 to September 2019. Under ultrasonography guidance, single or double markers were inserted to localize a tumor in the breast. The incidence of additional resection after frozen biopsy and re-excision after permanent pathologic diagnosis was analyzed. RESULTS:In a total of 130 patients, 104 had a single marker in the center of the tumor and 26 had double markers at the periphery of the tumor before NAC. Among 69 patients with residual invasive tumors after NAC, there was no difference in the additional resection rate after frozen biopsy (single vs. double markers; 14.3% vs. 38.5%, P = .059) or the re-excision rate after final pathologic diagnosis (0% vs. 7.7%, P = .188). After propensity score matching for tumor size and subtypes, the two groups showed no differences in the additional resection rate after frozen biopsy (7.7% vs. 19.2%, P = .139) or the re-excision rate (0% vs. 3.8%, P = .308). After a median follow-up of 19 months (range 8-48 months), local recurrence-free survival did not differ between the two groups (log-rank P = .456). CONCLUSIONS:Number of inserted markers for tumor localization did not affect the pathologic margin status after BCS.
journal_name
Breast Cancer Res Treatjournal_title
Breast cancer research and treatmentauthors
Cha C,Lee J,Kim D,Park S,Bae SJ,Eun NL,Ahn SG,Son EJ,Jeong Jdoi
10.1007/s10549-020-05907-9subject
Has Abstractpub_date
2020-12-01 00:00:00pages
797-803issue
3eissn
0167-6806issn
1573-7217pii
10.1007/s10549-020-05907-9journal_volume
184pub_type
杂志文章abstract:BACKGROUND:In several neoplastic diseases, immunosuppression has been shown to correlate with disease stage, progression, and outcome. As the prognosis for metastatic breast cancer is still pessimistic, additional strategies are being sought to improve survival. Local immunosuppression in sentinel node biopsies from 24...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1023/a:1016009913699
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journal_title:Breast cancer research and treatment
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journal_title:Breast cancer research and treatment
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journal_title:Breast cancer research and treatment
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journal_title:Breast cancer research and treatment
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journal_title:Breast cancer research and treatment
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journal_title:Breast cancer research and treatment
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journal_title:Breast cancer research and treatment
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journal_title:Breast cancer research and treatment
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journal_title:Breast cancer research and treatment
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