Angiomyolipoma of the kidney and lymph nodes

Angiomyolipoma (AML) is a benign mesenchymal tumor predominantly occurring in the kidney. Despite its low incidence of 0.07-0.3% in an unselected popu lation, this tumor is well known, because the typical AML can be diagnosed without histological confirmation by a combination of ultrasound (US) and c omputerized tomography (CT) imaging in up to 95% of cases. In contrast, sim ultaneous involvement of the kidney and the regional lymph nodes is less kn own and might be confused with metastasizing malignant tumor. We report a c ase of the very uncommon simultaneous involvement of the kidney and the lym ph nodes in AML.