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Poster presentation 2

1356 - A survey of margin status evaluation in the Korean Breast Cancer Society member


20 Dec 2015


Poster presentation 2


Hyunnam Baek


Annals of Oncology (2015) 26 (suppl_9): 16-33. 10.1093/annonc/mdv519


H. Baek1, E. Kim2, A.S. Lee3, S. Chae2, E.Y. Kang2, S. Kim3

Author affiliations

  • 1 Department Of Surgery, Breast Division, Seoul National University Bundang Hospital, 463-707 - Seoul/KR
  • 2 Department Of Surgery, Seoul National University Bundang Hospital, Seoul/KR
  • 3 Department Of Surgery, Breast Division, Seoul National University Bundang Hospital, Seoul/KR


Abstract 1356


In breast conserving surgery (BCS), it is important to get a clear resection margin. Recently, “no ink on tumor” has been raised as an appropriate surgical margin. This study aims to investigate the behavior of margin evaluation and enforcement re-excision Korean Breast Cancer Society (KBCS) members.


This study investigated March 2014 via e-mail to target KBCS members of the BCS surgical specimen orientation, frozen section(FS) underwent if and how, mastectomy conversion whether, pathologic reporting methods and criteria were the re-excision the surgeon.


A total of 126 surgeons were response from 79 institutions, they can have breast cancer surgery during the year 2013 is about 20,000 cases. Most were tagged for specimen orientation (95.7%), resection margin assessment was performed in 82.9% and all methods were used for FS. Frozen section biopsy sampling methods are collected at the rate at which the specimen (48.1%) and the cavity (51.9%) were similar. Most surgeons responded that they were able to enforce mastectomy conversion of the surgery (92.3%). Invasive cancer and ductal carcinoma in situ(DCIS) of the margin re-excision indication in accordance with the results of the comparison, margin positive in that case the ratio invasive cancer re-excision with DCIS in the ratio was similar (invasive cancer 72.6%, DCIS 71.8%), never implemented does not rates are a little higher in DCIS(invasive cancer 2.6%, DCIS 6.0%).


Korea has yet higher incidence of intraoperative margin assessment using FS and setting standards of margin re-excision is low. It seems to need a presentation of the appropriate standards.

Clinical trial identification


All authors have declared no conflicts of interest.

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