Fig. 2
From: The diagnostic value of contrast-enhanced ultrasonography in breast ductal abnormalities
A 61-year-old woman with ductal carcinoma in situ with 20% invasion. Conventional US showing a segmental duct dilatation area with microcalcification (echogenic foci) in the retroareolar region (a). A stripe blood flow signal can be seen on CDFI (b). CEUS showing heterogeneity and hyperenhancement along the duct (c, d, e); its enhancement scope (e dotted line area) was significantly larger than that of conventional US (red line area). The time-intensity curve shows fast in and fast out compared with the surrounding normal breast tissues (f)