Imaging features of solid renal masses.
Br J Radiol. 2017 Aug;90(1077):20170077. doi: 10.1259/bjr.20170077. Epub 2017 Jul 13. Galia M1, Albano D1, Bruno A1, Agrusa A2, Romano G2, Di Buono G2, Agnello F1, Salvaggio G1, La Grutta L1, Midiri M1, Lagalla R1.
The widespread use of abdominal imaging techniques has increased the detection of solid renal masses over the past years. Imaging plays a crucial role in the management and surveillance and in determining which lesions need treatment. The "classical angiomyolipoma" is the only benign solid renal mass that can be characterized with confidence by imaging through the detection of a fat-containing lesion without calcifications. There is a large overlap of imaging features between benign and malignant renal masses that often makes difficult a correct characterization of these lesions. In this review, we discuss the imaging features of the main solid renal masses that may suggest a likely benign diagnosis.