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Hepatic angiomyolipoma: a report of two cases.

Two cases of rare hepatic angiomyolipoma are reported. Both represented with slight abdominal discomfort. The first patient complained of abdominal fullness, and had a normal physical examination and laboratory data. The second came with epigastralgia. Tenderness over right upper quadrant was noted and positive hepatitis B antigen was found. Ultrasound demonstrated hyperechoic hepatic lesion in both. Although diagnosis of hepatic angiomyolipoma was suspected by the radiological findings of ultrasound, CT, MRI, and angiography, it was confirmed by the histological presence of three mesenchymal components: abundant vessels, mature fat cells and smooth muscle cells. For fear of the coexistence of hepatocellular carcinoma, especially given the high prevalence area of Taiwan, surgical intervention was recommended if liver function permitted. Successful treatment was achieved by hepatic resection in both cases.