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Verification of recall criteria for masses detected on ultrasound breast cancer screening.

Verification of recall criteria for masses detected on ultrasound breast cancer screening.
Author Information (click to view)

Ban K, Tsunoda H, Suzuki S, Takaki R, Sasaki K, Nakagawa M,


Ban K, Tsunoda H, Suzuki S, Takaki R, Sasaki K, Nakagawa M, (click to view)

Ban K, Tsunoda H, Suzuki S, Takaki R, Sasaki K, Nakagawa M,

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Journal of medical ultrasonics (2001) 2017 02 2545(1) 65-73 doi 10.1007/s10396-017-0778-5

Abstract
PURPOSE
Mammography is the only modality for breast cancer screening demonstrated to reduce the mortality rate. However, ultrasonographic screening is already being widely performed as opportunistic screening in Japan. The recall criteria for masses are very important as quality controls. The purpose of this study was to verify these criteria at multiple institutions.

METHODS
Screening was performed by five institutions in various regions in Japan. The total number of cases screened at all five institutions was 10,519.

RESULTS
The findings that could be concluded to be benign were a cystic pattern and three features of a solid pattern. The cystic pattern was noted in 6512 cases, typical fibroadenoma in 1483 cases, and typical complicated cyst in 70 cases. Only three of these 8065 cases were cancers, so the negative predictive value was 99.9%. The solid pattern with obvious malignant features, i.e., masses with an echogenic halo and/or interruption of the interface and masses with multiple echogenic foci, were noted in 33 cases. Twenty of the 33 cases were malignancy, resulting in a positive predictive value of 66.7%.

CONCLUSION
Although some parts of the criteria should be considered further for verification and revision, the current recall criteria are mostly valid.

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