Fig. 5
From: Role of multiparametric MRI in characterization of complicated cystic renal masses
Right renal cystic mass (Bosniak IV). Axial T1WI (A) demonstrated a well-defined right midzonal exophytic thick-walled parenchymal multilocular cystic lesion measuring 5.5 cm in its maximum dimension. The lesion is hypointense with mural nodules (Convex protrusion > 4 mm with obtuse angle) of intermediate signal inside. Axial T2WI (B) the lesion appears hyperintense with intermediate signal of the mural nodules (black arrow). Axial DWI (C) with b = 800 mm2/s & axial ADC map (D) showed restricted signals of the mural nodules with ADC value (0.8 × 10−3 mm2/s). Axial corticomedullary (E) and nephrographic (F) DCE-MRI subtracted images showed enhancing mural nodule (white arrow). The pathology was papillary renal cell carcinoma