Abstract #4122

Ductal Carcinoma in Situ Diagnosed with Contrast-Enhanced Breast MR Imaging. Can Invasion Be Predicted?ξ

Mariko Goto¹, Sachiko Yuen¹, Kei Yamada¹, Eiichi Konishi², Tsunehiko Nishimura¹

¹Radiology, Kyoto Prefectural University of Medicine, Kyoto, Japan; ²Pathology, Kyoto Prefectural University of Medicine

Aim of this study is to retrospectively evaluate whether magnetic resonance (MR) imaging features can be used to predict which cases diagnosed as ductal carcinoma in situ (DCIS) without invasion by means of needle biopsy will have invasive disease at surgery. In this study, we found the MR imaging features were useful for the diagnosis of occult invasion in DCIS, especially 1cm histological invasive nest within the DCIS. That is considered for helpful to decide appropriate location of needle biopsy.