Focal liver lesions: Practical magnetic resonance imaging approach

Figure 8 Intrahepatic cholangiocarcinoma. In- (A) and opposed-phase (B) GRE T1-WI, fat-suppressed FSE T2-WI (C), pre (D) and postcontrast fat-suppressed 3D-GRE T1-WI at the arterial (E), portal venous (F) and interstitial (G) phases. The tumor shows low signal intensity on T1-WI (A, B and D), high signal intensity on T2-WI (C), and heterogeneous peripheral continuous and progressive enhancement on postgadolinium images (E-G). Associated capsular retraction is also noted (white arrow, A-G). GRE: Gradient-echo; FSE: Fast spinecho; T1-WI: T1-weighted images.