Perirenal and Renal Sinus DiseasesHelical CT Findings

摘要

Helical CT scanning is a superb imaging technique for demonstrating diseases involving the perirenal space and the renal sinuses. This article reviews a broad spectrum of conditions, including perirenal collections (as a result of pancreatitis, hematoma, urinoma, abscess), extension of xanthogranulomatous and emphysematous pyelonephritis, inflammatory diseases (retroperitoneal fibrosis, Tamm-Horsfall proteinosis), perirenal benign tumors (angiomyolipoma, neurilemoma, lymphangiomatosis) and malignant tumors (liposarcoma, malignant fibrous histiocytoma), arterial diseases (stenosis, aneurysms), and venous processes (anatomic variants, nutcracker syndrome, collateral veins, renal vein tumors).