Magnetic Resonance Imaging Features of Uncomplicated Hepatic Adenoma: a case report MING-MING WU CHEN-CHU CHANG SONG-SHEI LIN JEN-I HWANG TAIN LEE YEU-SHENG TYAN

Hepatic adenomas (HAs) are incidentally detected with increasing frequency after imaging the abdomen for unrelated pathology. We report the radiological findings in an asymptomatic 47-yearold female with an uncomplicated HA, who received the subcutaneous implant of contraceptive Norplan six years ago. MRI showed a well-defined mass in the liver, which was isointense in the T1-weighted and fat-suppressed T2-weighted images, but became hypointense in the fat-suppressed T1-weighted images. Enhanced dynamic scan showed minimal enhancement in the arterial phase. Recognition of such MRI features will help us to suggest the possibility of uncomplicated HAs in the appropriate clinical setting.