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Renal emphysema in diabetic patients: CT evaluation
Ioannis Tsitouridis1, Michael Michaelides, Dimitrios Sidiropoulos
1Department of Diagnostic and Interventional Radiology, Papageorgiou General Hospital, Thessaloniki, Greece.
Renal emphysema, a severe gas-forming kidney infection often seen in diabetics, has high mortality. CT scans help differentiate its two forms, emphysematous pyelitis and pyelonephritis, guiding treatment.
Area of Science:
- Nephrology
- Radiology
- Infectious Diseases
Background:
- Renal emphysema is a rare, life-threatening infection of the kidney and surrounding tissues, characterized by gas formation.
- This condition is strongly associated with diabetes mellitus and has a high mortality rate of 40-90%.
Observation:
- This study describes computed tomographic (CT) findings in five patients with unilateral renal emphysema.
- The cases included two instances of emphysematous pyelitis and three of emphysematous pyelonephritis.
- All patients were insulin-dependent diabetics.
Findings:
- CT imaging revealed distinct patterns for emphysematous pyelitis and emphysematous pyelonephritis.
- The imaging characteristics aided in classifying the specific type of renal emphysema present.
Implications:
- Classifying renal emphysema into emphysematous pyelitis and pyelonephritis has significant prognostic and therapeutic implications.
- Accurate CT diagnosis is crucial for managing this severe diabetic complication.
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