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Unilateral small kidney
- 1. BY DR.MAIMUNA A. HALLIRU RADIOLOGYDEPARTMENT AMINU KANO TEACHING HOSPITAL 02-09-2013
- 2. INTRODUCTION CAUSESOF UNILATERAL SMALL KIDNEY ROLE OF IMAGING IN ESTABLISHING A DIAGNOSIS SUMMARY/CONCLUSION
- 3. DEFINITION OFUNILATERAL SMALL KIDNEY
- 4. PRE-RENAL/VASCULAR INTRA-RENAL/PARENCHYMAL POST-RENAL/COLLECTING SYSTEM
- 5. RENAL ARTERYSTENOSIS
- 6. NORMAL PATTERN: RAPID UPSTROKE& EARLY SYSTOLIC PEAK (ARROW) TARDUS & PARVUS WAVEFORM: SLOWED UPSTROKE & LOW AMPLITUDE PEAK
- 7.
- 8. CT- arterial phase: Differential perfusion
- 10. DENSE PERSISTENT NEPHROGRAM WITHPOOR EXCRETION OF CONTRAST MEDIUM
- 11.
- 13. BEADED, ANEURYSMAL APPEARANCE OFTHE RIGHT RENAL ARTERY IN FIBROMUSCULAR DYSPLASIA
- 17.
- 18. (A) An initialnephrotomogram demonstrates a thin cortical rim surrounding the right kidney (arrows), reflecting viable renal cortex perfused by perforating collateral vessels from the renal capsule. (B) Four months later, a repeat nephrotomogram shows a marked decrease in the size of the atrophic right kidney (arrowheads).
- 19. C+ portal venousphase CT demonstrates a wedge of poorly / non-enhancing renal parenchyma at the upper pole
- 20. CT demonstrates anon-enhancing thrombus extending into the renal vein
- 22. Heterogeneous mass atthe upper pole of the kidney.
- 23. Angiography showing arenal infarction
- 24.
- 26.
- 27. SMALL LEFT KIDNEYWITH PRESERVED ALBEIT REDUCED RENAL FUNCTION
- 30.
- 31. Renal dysplasia inLaurence-Moon-Biedl syndrome showing poorly developed papillae and small communicating calyceal diverticula on IVU.
- 32.
- 33. Post infective scarring. 99mTc-DMSAstudy showing normal left kidney; scarred right upper pole (arrows)
- 34.
- 35. Demonstrates bilateral diffusecalyceal clubbing (arrows) and deformity accompanied by thinning of the adjacent renal parenchyma (arrowheads)
- 36. Normal parenchymal thicknessin the upper portion of the kidney and generalized marked parenchymal thinning in the lower portion. The latter reflects chronic pyelonephritic scarring secondary to urinary tract infection and vesicoureteral reflux that occurred in childhood.
- 38.
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- 43. Normal parenchymal thicknessin the upper portion of the kidney and generalized marked parenchymal thinning in the lower portion. The latter reflects chronic pyelonephritic scarring secondary to urinary tract infection and vesicoureteral reflux that occurred in childhood.
- 44. Heterogeneous mass atthe upper pole of the kidney.
- 45. NORMAL PATTERN: RAPID UPSTROKE& EARLY SYSTOLIC PEAK (ARROW) TARDUS & PARVUS WAVEFORM: SLOWED UPSTROKE & LOW AMPLITUDE PEAK
- 46.
- 47. DENSE PERSISTENT NEPHROGRAM WITHPOOR EXCRETION OF CONTRAST MEDIUM
- 48. (A) An initialnephrotomogram demonstrates a thin cortical rim surrounding the right kidney (arrows), reflecting viable renal cortex perfused by perforating collateral vessels from the renal capsule. (B) Four months later, a repeat nephrotomogram shows a marked decrease in the size of the atrophic right kidney (arrowheads).
- 49. SMALL LEFT KIDNEYWITH PRESERVED ALBEIT REDUCED RENAL FUNCTION
- 50.
- 51. NARROWED SEGMENT OFLEFT MAIN RENAL ARTERY COMPUTED TOMOGRAPHY
- 52. CORTICAL DEFECTS ONCECT IN RENAL INFARCTION
- 53. RENAL SCARRING INREFLUX NEPHROPATHY
- 54.
- 55.
- 56.
- 57.
- 59. Post infective scarring. 99mTc-DMSAstudy showing normal left kidney; scarred right upper pole (arrows)
- 61.
- 62.
- 64. Angiography showing arenal infarction
- 65.