J Korean Soc Radiol.  2013 Mar;68(3):229-235. 10.3348/jksr.2013.68.3.229.

Evaluation of the Significance of Incidental Breast Lesions Detected by Chest CT

Affiliations
  • 1Department of Radiology, Soonchunhyang University College of Medicine, Soonchunhyang University Hospital, Seoul, Korea. ywchang@hosp.sch.ac.kr
  • 2Department of Radiology, Soonchunhyang University College of Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea.
  • 3Department of Radiology, Soonchunhyang University College of Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea.
  • 4Department of Radiology, Soonchunhyang University College of Medicine, Soonchunhyang University Gumi Hospital, Gumi, Korea.

Abstract

PURPOSE
To evaluate the significance of incidentally detected breast lesions on a chest CT scan.
MATERIALS AND METHODS
Thirty-six incidental breast lesions in 26 patients were detected on a chest CT scan and were correlated with breast sonography, retrospectively. Among them, twenty-four breast lesions in 20 patients that were correlated with chest CT and sonography were available to pathology or follow up sonography. The CT findings were compared with sonographic findings according to the pathologic results.
RESULTS
Incidentally detected breast lesions on a chest CT scan were correlated with sonography in 86% (31/36). Among 24 lesions that were available to pathology or follow up sonography, seven (29.2%) lesions were malignant and 17 (70.8%) lesions were benign. CT revealed a significant difference between benign and malignant lesions in terms of shape and margin (p = 0.007; p = 0.008, respectively). The CT findings were well correlated with sonographic findings in shape and margin (p = 0.001, respectively).
CONCLUSION
Incidentally detected breast lesions on chest CT can be correlated with sonography. An irregular shape or a non-circumscribed margin of breast lesions on a CT scan can be considered as a suggestive sign of malignancy.


MeSH Terms

Breast
Follow-Up Studies
Humans
Retrospective Studies
Thorax
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