Mycotic aneurysm of the hepatic artery is an acute circulatory disorder of the liver caused by mycotic embolus usually arisisng from the left hand side of the heart resulting in infected aneurysm characterised by pseudoaneurysm pathogenesis infected embolus to hepatic artery weakening of the wall true and pseudoaneurysm formation structural disorder true and pseudoaneurysm formation functional disorder potential for hemorrhage is high clinical presentation local pain systemic fever diagnostic studies include US, CT, angio treatment is commonly by interventional radiology or surgery