PART 13: Disorders of the Kidney and Urinary Tract
288 Urinary Tract Infections, Pyelonephritis, and Prostatitis
 | Figure 288-1 Pathogenesis of urinary tract infection. The relationship between specific host, pathogen, and environmental factors determines the clinical outcome. |
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 | Figure 288-2 Emphysematous pyelonephritis. Infection of the right kidney of a diabetic man by Escherichia coli, a gas-forming, facultative anaerobic uropathogen, has led to destruction of the renal parenchyma (arrow) and tracking of gas through the retroperitoneal space ( |
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 | Figure 288-3 Xanthogranulomatous pyelonephritis.A. This photograph shows extensive destruction of renal parenchyma due to long-standing suppurative inflammation. The precipitating factor was obstruction by a staghorn calculus, which has been removed, leaving a depression ( |
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 | Figure 288-4 Diagnostic approach to urinary tract infection. STD, sexually transmitted disease; CAUTI, catheter-associated UTI; ABU, asymptomatic bacteriuria; CA-ABU, catheter-associated ABU. |
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