Focal liver lesions: Practical magnetic resonance imaging approach

Figure 4 Cyst. In- (A) and opposed-phase (B) GRE T1-WI, fat-suppressed FSE T2-WI (C), pre (D) and post hepatocyte-specific contrast agent (Eovist^®) fat-suppressed 3D-GRE T1-WI at the arterial (E), portal venous (F), interstitial (G) and hepatobiliary (H) phases. There is a well-defined lesion on the right hepatic lobe (arrow, A-H) showing marked homogeneous low signal intensity on T1-WI (A, B and D), homogeneous very high signal intensity on T2-WI (C) and no enhancement after gadolinium administration (E-H), consistent with simple liver cyst. GRE: Gradient-echo; FSE: Fast spinecho; T1-WI: T1-weighted images.