1. Biologic and Clinical Features of Benign Solid and Cystic Lesions of the Liver 
Oren Shaked, Evan S. Siegelman, Kim Olthoff, K. Rajender Reddy 
Clinical Gastroenterology and Hepatology 
Volume 9, Issue 7, Pages e4 (July 2011)
DOI: /j.cgh
Copyright © 2011 AGA Institute Terms and Conditions

2. Figure 1
MR illustration of a lipid-containing hepatocellular adenoma in a 32-year-old woman with a history of oral contraceptive use. (A) Axial in phase T1-weighted image does not show a mass. Given that the lesion is isointense to the surrounding liver suggests it is of hepatocellular origin. (B) Axial opposed phase T1-weighted image shows loss of signal intensity within the lesion indicating the presence of lipid within the mass. Lipid is more often present in adenomas compared with focal nodular hyperplasia. (C) Axial fat suppressed T2-weighted image shows heterogeneous signal low, intermediate, and high signal intensity within the lesion. One would have expected focal steatosis to have been hypointense to isointense compared with liver on this pulse sequence.
Clinical Gastroenterology and Hepatology 2011 9, e4DOI: ( /j.cgh )
Copyright © 2011 AGA Institute Terms and Conditions

3. Figure 2
MR depiction of FNH incidentally found in a 33-year-old woman. (A) Axial fat suppressed T2-weighted image shows a right lobe liver FNH that is minimally hyperintense relative to liver with a higher signal intensity central scar. (B) Axial arterial phase gadolinium enhanced T1-weighted image shows enhancement of the FNH but not the central scar. (C) Delayed phase gadolinium enhanced T1-weighted image shows reversal of contrast with washout of the FNH and delayed scar enhancement.
Clinical Gastroenterology and Hepatology 2011 9, e4DOI: ( /j.cgh )
Copyright © 2011 AGA Institute Terms and Conditions

4. Figure 3
CT illustration of the characteristic enhancement features of liver hemangioma. Axial (A) arterial and coronal (B) portal phase enhanced CT images show progressive discontinuous peripheral nodular enhancement.
Clinical Gastroenterology and Hepatology 2011 9, e4DOI: ( /j.cgh )
Copyright © 2011 AGA Institute Terms and Conditions

5. Figure 4
Coronal T2-weighted image shows multiple liver and renal cysts in a 43-year-old woman with autosomal polycystic liver and kidney disease.
Clinical Gastroenterology and Hepatology 2011 9, e4DOI: ( /j.cgh )
Copyright © 2011 AGA Institute Terms and Conditions