Maki Kiba, Presenter: Nothing to Disclose

Mariko Goto MD, Abstract Co-Author: Research Grant, Bayer AG

Eiichi Konishi, Abstract Co-Author: Nothing to Disclose

Kei Yamada MD, Abstract Co-Author: Research funded, DAIICHI SANKYO Group Research funded, Eisai Co, Ltd Research funded, FUJIFILM Holdings Corporation Research funded, Nihon Medi-Physics Co, Ltd Research funded, Koninklijke Philips NV Consultant, H. Lundbeck A/S Consultant, Olea Medical Speaker, Bayer AG Speaker, DAIICHI SANKYO Group Speaker, Eisai Co, Ltd Speaker, Mitsubishi Corporation Speaker, Nihon Medi-Physics Co, Ltd Speaker, Otsuka Holdings Co, Ltd Speaker, Koninklijke Philips NV Speaker, Siemens AG Speaker, sanofi-aventis Group Speaker, Takeda Pharmaceutical Company Limited Speaker, Terumo Corporation

1. To learn about the potential pitfalls of BI-RADS MRI in diagnosing malignant breast lesions on dynamic MRI. 2. To learn about the key imaging findings in correlation with pathologic findings to correctly diagnose these malignant breast lesions on dynamic MRI.

 Contrast-enhanced breast MRI is known to have high sensitivity for detecting breast cancers and it has now become an essential modality for assessing breast lesions. Typical morphological appearance of breast cancers on dynamic MRI is now well established, and the Breast Imaging Reporting and Data System (BI-RADS) MRI demonstrates good correlation with the likelihood of malignancy. However, it is known that there are some malignant breast lesions which are difficult to be correctly diagnosed by using the BI-RADS MRI lexicon; for example, some of the breast cancers have similar morphology to benign lesions, some have poor enhancement, and there are other factors that may cause false negative results.  In this article, we will review these malignant breast lesions that may morphologically mimic benign lesions and exhibit false negative results on dynamic MRI. In addition, we will perform the correlation between the imaging and pathological findings of these malignant lesions to avoid potential pitfalls on dynamic MRI.

http://abstract.rsna.org/uploads/2014/14003641/14003641_5wle.pdf

Kiba, M, Goto, M, Konishi, E, Yamada, K, Potential Pitfalls of Dynamic Breast MRI: Key Imaging Findings for Making Correct Diagnosis.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14003641.html