Pearls and pitfalls in magnetic resonance imaging of hepatocellular carcinoma

Figure 5 Hepatocellular carcinoma in 54-year old man with non-alcoholic fatty liver disease. A: Axial T2-weighted FS image shows hyperintense lesion (arrow) in segment Ivb; B and C: Dual-echo images show that tumor (arrow) is hypointense on in-phase image (B) without signal drop on opposed-phase image, while background liver parenchyma shows diffuse signal drop as a consequenence of fatty liver disease (C); D and E: The lesion (arrow) is hypervascular on arterial phase (D) without washout on portal-venous phase (E); F: On hepatobiliary phase the nodule (arrow) is isointense with surrounding liver parenchyma.