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The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
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Breast Cancer Statistics in Korea, 2018.

Sang Yull Kang1, Sae Byul Lee2, Yoo Seok Kim3

  • 1Department of Surgery, Research Institute of Clinical Medicine, Jeonbuk National University Hospital, Jeonbuk National University and Biomedical Research Institute, Jeonju, Korea.

Journal of Breast Cancer
|April 29, 2021
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Summary
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Breast cancer incidence is rising in Korean women. Early-stage detection and breast-conserving surgeries are increasing, improving survival rates for this common malignancy.

Keywords:
Breast neoplasmsEpidemiologyKoreaRegistriesStatistics

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Area of Science:

  • Oncology
  • Epidemiology
  • Public Health

Background:

  • Breast cancer is the most prevalent malignancy among Korean women, with a continuously increasing incidence.
  • The Korean Breast Cancer Society (KBCS) has maintained a nationwide database since 1996.

Purpose of the Study:

  • To analyze the clinical characteristics of breast cancer in Korea.
  • To evaluate changes in breast cancer management patterns in 2018.

Main Methods:

  • Analysis of the Korean Breast Cancer Society (KBCS) and Korea Central Cancer Registry (KCCR) databases for 2018.
  • Examination of age-standardized rates, patient demographics, stage distribution, surgical procedures, and molecular subtypes.

Main Results:

  • In 2018, 28,157 new breast cancer cases were recorded, with a median age of 52 years; incidence peaked in the 40-49 age group.
  • Early-stage diagnoses (Stage 0 and I) increased to 63.8%, with breast-conserving surgery (66.2%) preferred over mastectomy (33.0%).
  • The 5-year relative survival rate improved to 93.3% (2014-2018) from 79.3% (1993-1995).

Conclusions:

  • Clinical characteristics and management of breast cancer in Korea are evolving.
  • National cancer databases are crucial for understanding disease patterns in Korean women.
  • Continuous updates to registries like the KBCS are vital for effective breast cancer management.