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Is evaluation of the presence of prepectoral edema on T2-weighted with fat-suppression 3 T breast MRI a simple and readily available noninvasive technique for estimation of prognosis in patients with breast cancer?
MedLine Citation:
PMID:  23341125     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: The specificity of breast MRI is only moderate. The unsatisfactory specificity of breast MRI has prompted evaluation of high signal intensity (SI) on T2-weighted imaging (T2WI). The purpose of the study was to investigate the prevalence of prepectoral edema determined using high SI on T2WI with fat-suppression 3 T MRI and to correlate its presence with prognostic factors of breast cancer. METHODS: The retrospective study comprised 589 consecutive histopathologically confirmed lesions, 460 malignant and 129 benign, identified by 3 T MRI. Presence of prepectoral edema was evaluated on T2WI with fat suppression, and its diagnostic value for malignancies and correlation with clinicopathological findings in histopathologically confirmed breast cancer were assessed. RESULTS: Prepectoral edema was present in 54 of the 460 breast cancers (9 % of the total 589) and none of the 129 benign lesions. Its sensitivity and specificity were 12 and 100 %, respectively. The positive predictive value was 100 %. Young age (p = 0.01), large tumor size (p < 0.0001), high histological grade (p < 0.0001), invasive ductal carcinoma (p < 0.0001), high lymphovascular invasion degree (p < 0.0001), high axillary lymph node positivity (p < 0.0001), high inflammatory breast cancer rate (p < 0.0001), high neoadjuvant chemotherapy rate (p < 0.0001), and chemoresistant breast cancers (p < 0.0001) were significantly associated with prepectoral edema. There was no association of the morphological lesion type on MRI and dynamic enhancement imaging pattern with the presence of prepectoral edema. CONCLUSION: Prepectoral edema has low prevalence but is specific for breast cancer and correlated with prognostic factors.
Authors:
Takayoshi Uematsu; Masako Kasami; Junichiro Watanabe
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-23
Journal Detail:
Title:  Breast cancer (Tokyo, Japan)     Volume:  -     ISSN:  1880-4233     ISO Abbreviation:  Breast Cancer     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100888201     Medline TA:  Breast Cancer     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Breast Imaging and Breast Intervention Section, Shizuoka Cancer Center Hospital, Naga-izumi, Shizuoka, 411-8777, Japan, t.uematsu@scchr.jp.
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