[Extrarenal angiomyolipoma: vascular, lymphonodal, and perirenal localization. Report of 4 cases].

Angiomyolipomas are rare renal tumors considered benign even though evidences of occurrence of the disease in lymphnodes and vascular structures as well as in a variety of distant sites, such as the liver, the uterus, the nasal cavity and others, have occasionally been reported. We describe one case of late lesion of angiomyolipoma within the wall of the inferior bronchial artery, two cases of lymphnodes involvement and one case of angiomyolipoma extending into the perirenal fat.