Breast cancer imaging : ductal carcinoma in-situ (DCIS) : part 2

Abstract

DCIS is rarely seen in US, where it may appear as a microlobulated mass with mild hypoechogenicity, ductal extension, and normal acoustic transmission. Recent studies conducted at higher spatial resolution MRI have increasingly been performed to screen higher -risk women as well as to evaluate extent of disease. The sensitivity of MR imaging for detection of DCIS had been shown to be higher for high-grade and intermediate-grade DCIS as compared with low-grade DCIS (98%, 91% and 80%, respectively). Overall, MR imaging is more sensitive than mammography in the detection of all grades of DCIS. Over the past decade, studies have shown that the sensitivity of MRI for DCIS has improved significantly and is much higher than that of mammography.