Saturday, April 11, 2009

USMLE STEP 3 QUESTION ON DEMAND

An asymptomatic previously healthy 60-year-old man comes to the office because he is found to have a liver mass. Recently, he had epigastric and right upper quadrant pain, which was investigated by means of ultrasound. Sonography demonstrated a lesion in the right lobe of the liver, but no gallstones or evidence of cholecystitis. Further investigations by means of endoscopy revealed gastritis from Helicobacter pylori, for which he was treated. He is concerned about this liver mass and hence, comes to the office. The liver mass is described as an 8-cm solitary lesion within the right lobe of the liver. No enterohepatic biliary ductal dilatation was noticed. A CT scan of the abdomen performed with contrast demonstrated a progressive peripheral to central prominent enhancement and a central hypodense region. An MRI shows a dense T2 weighted image. The most appropriate next step in the management of this patient's liver lesion is
A. celiac arteriography
B. observation
C. percutaneous needle biopsy
D. radiation therapy
E. resection

ASKED BY: DR. DEEPAK KUMAR, MATHURA

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