Snapshot A 50-year-old man with a history of diabetes mellitus presents to the emergency room for gross amounts of blood in his urine. He denies any pain with urination and has never had hematuria before. He has no family history of cancer and does not smoke. Physical exam is unremarkable. His urinalysis reveals hematuria, proteinuria, and necrotic tissue. Introduction Clinical definition login to view 1 more bullet Epidemiology login to view 13 more bullets Pathogenesis login to view 8 more bullets Prognosis login to view 4 more bullets Presentation Symptoms login to view 6 more bullets Physical exam login to view 1 more bullet Imaging ring sign Radiographs login to view 8 more bullets CT login to view 9 more bullets Intravenous urography (IVU) login to view 5 more bullets Studies Labs login to view 2 more bullets Urinalysis login to view 3 more bullets Differential Nephrolithiasis login to view 1 more bullet Tubulointerstitial nephritis login to view 1 more bullet Treatment Medical login to view 3 more bullets Complications Chronic pyelonephritis Sepsis