Li A, et al. - In this retrospective study, the researchers assessed the utility of volumetric histogram analysis of apparent diffusion coefficient (ADC) derived from reduced-FOV DWI for small (≤ 4 cm) solid renal mass subtypes at 3-T MRI. This investigation involved 38 clear cell renal cell carcinomas (RCCs), 16 papillary RCCs, 18 chromophobe RCCs, 13 minimal fat angiomyolipomas (AMLs), and seven oncocytomas evaluated with preoperative MRI. The findings from the present study suggested that quantitative volumetric ADC histogram analysis could help differentiate various subtypes of small solid renal tumors, including benign and malignant lesions.