J Korean Cancer Assoc.  1999 Jun;31(3):499-508.

Breast Cancer Detected by Screening Mammography

• Son BH
• Park JM
• Gong GY
• Ahn SH

Abstract

PURPOSE: The early detection of breast cancer by screening mammography is important to reduce breast cancer mortality rate. The purpose of this study was to investigate the characteristics of breast cancer patients detected by screening mammography.
MATERIALS AND METHODS
Surgically treated 1,265 patients at Asan Medical Center from Jul. 1989 to Dec. 1997 were evaluated. Among them, 119 patients (9.4%) were detected by screening mammography. These patients were compared with clinically detected symptomatic breast cancer group.
RESULTS
The characteristics of breast cancer patients detected by screening mammography were as follows: The most common finding of mammography was microcalcifications (62.2%); The less invasive or more conservative minimal and non-destructive surgical treatments such as breast conserving surgery (21.0%), simple mastectomy (8.4%), breast reconstruction (8.4%) were performed more frequently; The median tumor size of invasive cancers was 16 mm; Node-negative cancers (83.2%) were more frequent; The early breast cancer of stage 0 and I was 70.6%; DCIS (29.4%) was highly proportionated; and The 5-year overall (95.8%) and 5-year disease-free survival rate (92.0%) were significantly higher than in clinically detected symptomatic breast cancer patients.
CONCLUSION
The screening mammography was significant for detecting non-palpable, early stage breast cancer. Ultrasonography was needed as an adjunct for the accurate detection in dense breast or young women. According to early detection, the 5-year survival rate was high.

Keyword

Screening mammography; Early breast cancer; Survival rate

MeSH Terms

Breast Neoplasms*
Breast*
Carcinoma, Intraductal, Noninfiltrating
Chungcheongnam-do
Disease-Free Survival
Female
Humans
Mammaplasty
Mammography*
Mass Screening*
Mastectomy, Segmental
Mastectomy, Simple
Mortality
Survival Rate
Ultrasonography