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IgA nephropathy and polycystic kidney disease
J M Panisello1, A Martinez-Vea, C Garcia
1Section of Nephrology, Hospital Juan XXIII, Tarragona, Spain.
American Journal of Nephrology
|January 1, 1988
Summary
Polycystic kidney disease patients with nephrotic-range proteinuria may have superimposed IgA nephropathy and focal segmental glomerulosclerosis. This co-occurrence can accelerate kidney failure in these individuals.
Area of Science:
- Nephrology
- Pathology
Background:
- Polycystic kidney disease (PKD) is a common genetic disorder.
- Patients with PKD often experience advanced renal failure and proteinuria.
Observation:
- A patient with PKD presented with nephrotic-range proteinuria and advanced renal failure.
- Kidney biopsy revealed IgA nephropathy coexisting with focal and segmental glomerulosclerosis (FSGS).
Findings:
- This combined diagnosis of IgA nephropathy and FSGS in a PKD patient is previously undescribed.
- The association is likely coincidental, suggesting proteinuria in PKD can stem from other glomerular diseases.
Implications:
- This case highlights that nephrotic-range proteinuria in PKD may indicate an additional glomerular disease.
- Such superimposed glomerulopathies can significantly worsen the progression of azotemia in polycystic kidney disease patients.