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Precis Future Med > Epub ahead of print
DOI: https://doi.org/10.23838/pfm.2021.00079    [Epub ahead of print]
Published online July 20, 2021.
Predictive value of chest computed tomography for axillary lymph node metastasis in patients with breast cancer
Chohee Kim  , Myung Jin Chung  , Semin Chong 
Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
Correspondence  Semin Chong ,Tel: +82-2-3410-2518, Email: sm.chong@samsung.com
Submitted: July 2, 2021  Accepted after revision: July 7, 2021
Abstract
Purpose
This study aimed to evaluate the predictive value of preoperative chest computed tomography (CT) for axillary lymph node (ALN) metastasis in patients with breast cancer.
Methods
CT features of ALNs were retrospectively reviewed in 212 patients with breast cancer who underwent preoperative chest CT examination and ALN dissection. Primary tumor size and CT characteristics of ALNs (cortical thickness, cortical shape, the presence or absence of contrast enhancement of ALNs, and the presence or absence of perinodal infiltration) were recorded and analyzed. A nomogram was developed to visualize the associations between the predictors and each ALN status endpoint.
Results
Of 212 patients, 95 (44.8%) had ALN metastasis. Primary tumor size and CT characteristics of ALNs were identified as predictors of ALN metastasis. The nomogram comprising primary tumor size and cortical shape was a good validation model for predicting ALN metastasis. The sensitivity, specificity, and accuracy of the nomogram for predicting ALN metastasis were 88.4%, 79.5%, and 83.5%, respectively.
Conclusion
Using preoperative chest CT scans, a nomogram combining the cortical shape of ALNs with the primary tumor size showed good performance in predicting ALN metastasis.
Keywords: Axilla; Lymph Nodes; Lymphatic Metastasis; Breast Neoplasms; Tomography, X-Ray Computed
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