Fig. 4From: CT and MR imaging of cystic renal lesionsBosniak category I renal cyst. a Axial T2-weighted MR image shows a lesion (arrow) with strong hyperintensity and a thin wall. Corresponding axial non-enhanced (b) and contrast-enhanced (c) T1-weighted MR images show a hypointense lesion with a thin and non-enhancing wallBack to article page