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Differences in Prognostic Factors and Failure Patterns Between Invasive Micropapillary Carcinoma and Carcinoma With Micropapillary Component Versus Invasive Ductal Carcinoma of the Breast: Retrospective Multicenter Case-Control Study (KROG 13-06)

Authors
 Jeong Il Yu  ;  Doo Ho Choi  ;  Seung Jae Huh  ;  Eun Yoon Cho  ;  Kyubo Kim  ;  Eui Kyu Chie  ;  Sung W. Ha  ;  In Ae Park  ;  Sung Ja Ahn  ;  Ji Shin Lee  ;  Kyung Hwan Shin  ;  Youngmee Kwon  ;  Yong Bae Kim  ;  Chang-Ok Suh  ;  Ja Seung Koo  ;  Jin Hee Kim  ;  Bae Gwon Jeong  ;  In Ah Kim  ;  Jong Hoon Lee  ;  Won Park 
Citation
 CLINICAL BREAST CANCER, Vol.15(5) : 353-361, 2015 
Journal Title
 CLINICAL BREAST CANCER 
ISSN
 1526-8209 
Issue Date
2015
MeSH
Adult ; Biomarkers, Tumor/metabolism ; Breast Neoplasms/mortality* ; Breast Neoplasms/pathology* ; Breast Neoplasms/therapy ; Carcinoma, Ductal, Breast/mortality* ; Carcinoma, Ductal, Breast/pathology* ; Carcinoma, Ductal, Breast/therapy ; Carcinoma, Papillary/mortality* ; Carcinoma, Papillary/pathology* ; Carcinoma, Papillary/therapy ; Case-Control Studies ; Female ; Follow-Up Studies ; Humans ; Middle Aged ; Neoplasm Grading ; Neoplasm Staging ; Prognosis ; Retrospective Studies ; Survival Rate
Keywords
Breast cancer ; Case–control study ; Invasive micropapillary carcinoma ; Locoregional recurrence ; Pattern of failure
Abstract
PURPOSE: We designed the present study to investigate differences in prognostic factors and failure patterns between patients with invasive micropapillary carcinoma or carcinoma with micropapillary component (IMPC) and randomly matched patients with invasive ductal carcinoma (IDC) of the breast at multiple institutions of the Korean Radiation Oncology Group (KROG). MATERIALS AND METHODS: This retrospective multicenter study was performed using subjects treated from January 1999 to November 2011. Female patients who had undergone curative resection for breast cancer without neoadjuvant chemotherapy were considered for this study. Exact matches were made for age (± 3 years), pathologic tumor and node stage, treatment method (surgery with or without radiotherapy), and period when surgery was performed (within 1 year) at the same institution. RESULTS: A total of 534 patients were analyzed. The median follow-up period was 59 months in both groups. In the comparison of clinicopathologic characteristics, rates of lymphovascular invasion (LVI) and nuclear grade III were both significantly higher in IMPC than in IDC (P < .001, P = .01, respectively). During the follow-up period, recurrences developed in 40 patients with IMPC (15.0%) and 21 with IDC (7.9%). Locoregional recurrence (LRR) developed in 22 patients with IMPC (8.2%) and 10 with IDC (3.7%). The rate of distant metastasis did not differ between the 2 groups (P = .52). LRR-free survival (P = .03) and recurrence-free survival (P = .007) were significantly different between the 2 groups, but overall survival was not (P = .67). CONCLUSION: IMPC is associated with a higher rate of LVI, high nuclear grade, and a propensity for LRR compared to IDC. Modification of the locoregional treatment modality might be needed in this pathologic subtype of breast cancer.
Full Text
https://www.sciencedirect.com/science/article/pii/S1526820915000269
DOI
10.1016/j.clbc.2015.01.008
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Pathology (병리학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiation Oncology (방사선종양학교실) > 1. Journal Papers
Yonsei Authors
Koo, Ja Seung(구자승) ORCID logo https://orcid.org/0000-0003-4546-4709
Kim, Yong Bae(김용배) ORCID logo https://orcid.org/0000-0001-7573-6862
Suh, Chang Ok(서창옥)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/156791
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