Teenager with tuberous sclerosis and abdominal pain

CT of angiomyolipomas
Axial CT with contrast of the abdomen shows a small round low density lesion in the posterolateral aspect of the left kidney (above) and a larger round low density lesion in the posterior aspect of the right kidney (below). There is also an intermediate density round lesion in the anteromedial aspect of the left kidney (above).

The diagnosis was angiomyolipomas of the kidneys in a patient with tuberous sclerosis with the left anteromedial lesion having microscopic fat and the left posterolateral and right posterior lesions having macroscopic fat.