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KMID : 1134120100130020154
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Journal of Breast Cancer
2010 Volume.13 No. 2 p.154 ~ p.159
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Limitations of Conventional Contrast-enhanced MRI in Selecting Sentinel Node Biopsy Candidates among DCIS Patients
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Moon Hyeong-Gon
Hwang Ki-Tae
Roh Dong-Young
Moon Woo-Kyung
Lee Jong-Won
Han Won-Shik
Ko Eun-Young
Kim Eun-Kyu
Yu Jong-Han
Jung So-Youn
Lyou Chae-Yeon
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Abstract
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Purpose A better predictive model for occult invasive disease in ductal carcinoma in situ (DCIS) patients is essential to guide the tailored use of sentinel node biopsies. We hypothesized that recent improvement of contrast-enhanced breast magnetic resonance imaging (MRI) could provide more accurate information on the presence of occult invasion in DCIS patients.
Methods From a prospectively maintained database, we identified 143 DCIS patients diagnosed with needle biopsies in whom MRI images were available.
Results Sixty-five patients (45.5%) were upstaged to invasive carcinoma after curative surgery. Ultrasonographic lesion size, mass-appearance on mammography, type of needle used, and the presence of suspicious microinvasive foci were associated with increased likelihood of upstaging. Among the features of MRI, only mass-appearance was significantly associated with the presence of invasive disease (p=0.002). However, up to 50% of masses in MRI cases had massappearance on mammography as well. Other morphologic and pharmacokinetic features of MRI, such as shape, margin, and patterns of enhancement and washout, did not have a significant association.
Conclusion Among various morphologic and pharmacokinetic parameters of contrast-enhanced MRI, only mass-appearance was associated with occult invasive disease. Our results show the limitations of current contrast-enhanced MRI in predicting invasive disease in patients with preoperative diagnoses of DCIS.
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KEYWORD
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Breast neoplasms, Magnetic resonance imaging, Noninfiltrating intraductal carcinoma, Sentinel lymph node biopsy
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