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KMID : 1134120080110020064
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Journal of Breast Cancer
2008 Volume.11 No. 2 p.64 ~ p.70
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A Comparative Study of Palpable and Nonpalpable Breast Cancers determined by Ultrasonography
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Cho Kyu-Ran
Seo Bo-Kyoung
Lee Joon-Young
Lee Ki-Yeol
Je Bo-Kyung
Kim Baek-Hyun
Cha Sang-Hoon
Oh Yoo-Hwan
Kim Seok-Jin
Bae Jeoung-Wan
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Abstract
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Purpose: The aim of this study was to investigate any difference of ultrasound findings for palpable and nonpalpable breast cancers. Methods: Two hundred breast cancer patients that had undergone preoperative ultrasound and surgery were enrolled in the study. A total of 126 cancers were palpable, and the remaining 74 cancers were nonpalpable. We compared lesion characteristics using ultrasound images according to the BI-RADS?-Ultrasound guidelines of the American College of Radiology. A crude odds ratio (OR) and 95% confidence interval (CI) were calculated for a comparison of the palpable and nonpalpable breast cancers. Results: Nonpalpable cancers displayed more often an oval shape (OR=0.35, 95% CI=0.17-0.70), no posterior acoustic features (OR=0.50, 95% CI=0.28-0.89), and a parallel orientation (OR=0.50, 95% CI=0.28-0.89). An irregular shape (OR=2.98, 95% CI=1.60-5.54), a spiculated margin (OR= 2.66, 95% CI=1.23-5.74), and a combined pattern of posterior acoustic features (OR=7.20, 95% CI=1.64-31.66) were more commonly observed in the palpable cancers. Conclusion: Palpable and nonpalpable breast cancers were found to have different ultrasound characteristics.
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KEYWORD
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Breast, Breast neoplasms, Palpation, Ultrasonography, Mammary
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