Keywords:
Abdomen, Kidney, CT, MR, Comparative studies, Neoplasia, Abscess, Cysts
Authors:
S. Maurea, S. Capece, D. Baldari, C. Mollica, P. P. Mainenti, L. Camera, M. Salvatore; Naples/IT
DOI:
10.1594/ecr2013/C-0866
Methods and Materials
We studied 21 patients with ultrasonographic evidence of renal masses.
The total of renal masses were 23,
of which the majority (74%; n=17) were malignant tumors (clear cell renal cell carcinoma=10,
chromophobe renal cell carcinoma=2,
squamocellular carcinoma=1,
urothelial carcinoma=2,
lymphoma=1,
Wilms’ tumor=1),
and the remaining 6 lesions (26%) were benign (simple cyst=1,
hemorrhagic cyst=1,
lipoma=1,
pyelonephritis=2,
oncocytoma=1).
All patients underwent pre- and post-contrast multi-slice CT and high-filed (3.0 Tesla) MR imaging studies.
The images were evaluated in a double blind study by two expert radiologists.
Imaging results were compared with histology data to calculate the diagnostic accuracy in lesion identification (measuring lesion size in cm) and characterization (margin regularity,
fat infiltration and vascular invasion) as benign or malignant lesions using a scoring analysis.