[Hepatic and renal angiomyolipoma]

Angiomyolipoma is a benign mixed mesenchymal tumor. It is a well known entity in the kidney, but very rare in the liver. A case of renal and hepatic angiomyolipoma without no evidence of tuberous sclerosis is presented. This association has been previously described only once before. Radiologic and ultrasonographic findings may be suggestive of the lesion, showing both fatty and hypervascular components. The definitive diagnosis requires histologic and immunohistochemical confirmation by fine needle aspiration biopsy. Surgical excision is unnecessary unless abdominal discomfort is present or malignant tumor is not completely ruled out.