RADIOLOGY: HEPATOBILIARY: Case# 106: AMIODARONE TOXICITY. Patient is a 59 year old male with several week history of nausea and vomiting. Patient is on Amiodurone therapy for cardiac arrhythmia. Ultrasound was performed 3 weeks ago, which demonstrated a hyperechoic lesion in the liver possibly representing a hemangioma. CT is requested for follow-up. Predominantly low attenuation lesion is noted in the right hepatic lobe measuring 2 x 2cm and demonstrating mild nodular peripheral enhancement. This lesion becomes isodense with the surrounding liver parenchyma on delayed views. The liver also demonstrates a diffuse increase in attenuation consistent with Amiodurone therapy. No other significant hepatic lesions are identified. Multiple gallstones are noted without evidence of gallbladder wall thickening or pericholecystic fluid. Bilateral renal cysts are noted.