Pyelonephritis other imaging findings: Difference between revisions
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==Other Imaging Findings== | ==Other Imaging Findings== | ||
===Contrast Nephrograms=== | ===Contrast Nephrograms=== | ||
====Acute Pyelonephritis==== | |||
*Acute pyelonephritis consist of focal areas of striated or wedge-shaped [[hypoperfusion]], resulting in a characteristic '''[[striated]] nephrogram'''. | *Acute pyelonephritis consist of focal areas of striated or wedge-shaped [[hypoperfusion]], resulting in a characteristic '''[[striated]] nephrogram'''. | ||
*Striations result from stasis of contrast material within edematous tubules that demonstrates increasing attenuation over time. | *Striations result from stasis of contrast material within edematous tubules that demonstrates increasing attenuation over time. | ||
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===Urography=== | ===Urography=== | ||
====Xanthogranulomatous Pyelonephritis==== | |||
* Classic urographic triad in diffuse xanthogranulomatous pyelonephritis consists of unilaterally decreased or (more commonly) absent renal excretion, a staghorn calculus, and a poorly defined mass or diffuse renal enlargement. | * Classic urographic triad in diffuse xanthogranulomatous pyelonephritis consists of unilaterally decreased or (more commonly) absent renal excretion, a staghorn calculus, and a poorly defined mass or diffuse renal enlargement. | ||
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[[Category:Inflammations]] | [[Category:Inflammations]] | ||
[[Category:Disease]] | [[Category:Disease]] | ||
[[Category:Primary care]] | |||
[[Category:Needs overview]] | |||
{{WH}} | {{WH}} | ||
{{WS}} | {{WS}} | ||
Revision as of 03:28, 11 March 2013
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Other Imaging Findings
Contrast Nephrograms
Acute Pyelonephritis
- Acute pyelonephritis consist of focal areas of striated or wedge-shaped hypoperfusion, resulting in a characteristic striated nephrogram.
- Striations result from stasis of contrast material within edematous tubules that demonstrates increasing attenuation over time.
- The infected kidney is usually enlarged, and there is often stranding in the perinephric fat.
- Delayed views of the infected kidney may demonstrate a nephrogram with increased attenuation.
Urography
Xanthogranulomatous Pyelonephritis
- Classic urographic triad in diffuse xanthogranulomatous pyelonephritis consists of unilaterally decreased or (more commonly) absent renal excretion, a staghorn calculus, and a poorly defined mass or diffuse renal enlargement.