[Giant and bilateral renal angiomyolipomas]

We describe the very pathognomonic CT aspects of giant renal angiomyolipomas fortuitously demonstrated in a young male with typical neurological and dermatological patterns of tuberous sclerosis. Angiomyolipomas are rare but 20 to 50% are associated with multiple sclerosis. The advent of CT has made the diagnosis much accurate and avoids unnecessary surgery especially for a single mass. The presence of fat intermixed with areas of other tissue density is very specific and practically excludes the diagnosis of renal carcinoma. Along with MRI, CT is a method of choice to delineate the sometimes very invading tumor. The symptoms of tuberous sclerosis are shortly reminded; the clinical presentation and complications of angiomyolipomas are briefly described.