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Chinese Journal of Clinicians(Electronic Edition) ›› 2020, Vol. 14 ›› Issue (05): 337-343. doi: 10.3877/cma.j.issn.1674-0785.2020.05.004

Special Issue:

• Breast Cancer?Clinical Research • Previous Articles     Next Articles

Clinicopathological features and prognostic factors of triple negative breast cancer

Zhantao Liu1, Yanqiu Song1,()   

  1. 1. Department of Oncology, the First Hospital of Jilin University, Changchun 130021, China
  • Received:2020-02-21 Online:2020-05-15 Published:2020-05-15
  • Contact: Yanqiu Song
  • About author:
    Corresponding author: Song Yanqiu, Email:

Abstract:

Objective

To analyze the clinicopathological characteristics and survival differences between patients with triple negative breast cancer (TNBC) and those with non-TNBC, and to explore the factors influencing the prognosis of TNBC patients.

Methods

The clinical and pathological characteristics, treatment plan, local recurrence or distant metastasis, and survival of 800 patients with early breast cancer who were treated at the Tumor Center of the First Hospital of Jilin University from January 2010 to December 2013 were analyzed retrospectively.

Results

A total of 130 (16.25%) patients were confirmed with TNBC and 670 with non-TNBC by immunohistochemistry. Compared with non-TNBC, TNBC had significantly different age of onset, family history of breast cancer, tumor length, axillary lymph node status, histological grade, pathological type, Ki-67 index, and clinical stage (P<0.05), though no significant differences were noted in menstrual status, operation mode, or radiotherapy (P>0.05). The local recurrence and metastasis rate of TNBC patients was significantly higher than that of non-TNBC patients. The 3-year and 5-year disease free survival (DFS) rates and 5-year overall survival (OS) rate of TNBC patients were significantly lower than those of non-TNBC patients (P<0.001), but the 3-year OS rates of the two groups had no statistical difference (P>0.05). Univariate analysis showed that the factors influencing DFS and OS in TNBC patients were tumor length, axillary lymph node status, clinical stage, and vascular or neural infiltration. Multivariate analysis showed that tumor length, menstrual status, and clinical stage were independent risk factors for DFS in TNBC patients, while tumor length and diameter were independent risk factors for OS.

Conclusion

Compared with non-TNBC, TNBC has the characteristics of early onset age, family aggregation, large mass length, easy axillary lymph node metastasis in early stage, high histological grade, late clinical stage, high Ki-67 index, high local recurrence or distant metastasis rate, and poor long-term prognosis. Therefore, it is of great clinical significance to make a diagnosis and obtain the pathological features of TNBC as early as possible, in order to give individualized comprehensive treatment and regular follow-up to improve the prognosis and quality of life and prolong the survival period.

Key words: Breast neoplasms, Triple negative, Pathological characteristics, Prognostic factors

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