Fig. 19

Left hemorrhagic/proteinaceous renal cyst in an asymptomatic 68-year-old female. a Axial T2-weighted MR image shows a partially exophytic hypointense left renal lesion (arrow). b Axial T1-weighted MR image shows hyperintense signal within the lesion (arrow). c Axial T1-weighted with fat subtraction MR image shows no signal loss within the lesion suggesting internal hemorrhagic/proteinaceous material (arrow). No internal enhancement on the post contrast subtraction images confirming the benign nature of the lesion