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Abstract #2494

MR Imaging Features of Invasive Lobular Carcinoma: A Comparison with Invasive Ductal Carcinoma

Sung Hun Kim1, Jae Young Byun1, Eun Suk Cha1, Hyun Sook Kim1, Jae Jeong Choi1

1Radiology, College of Medicine, the Catholic University of Korea, Seocho gu, Seoul, Korea, Republic of

Invasive lobular carcinoma (ILC) is the second most common breast cancer after invasive ductal carcinoma (IDC). The incidence of ILC has continuously increased probably due to hormone replacement therapy. There were little studies to compare the imaging findings of ILC and IDC according to BI-RADS. The purposes of our study were to characterize the mammographic and MR imaing features of ILC and to compare these imaging features with those of IDC. Furthermore, the multiplicity and MRI diagnostic accuracy to detect the multiplicity apart from the index mass were determined.