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[Idiopathic membranous nephropathy in an elderly patient with type 2 diabetes mellitus]
O Costero1, C Díaz, F de Alvaro
1Servicio de Nefrología Hospital La Paz Paseo de la Castellana, 261 28046 Madrid. costerof@jazzfree.com
Abstract:
We report an 85 years-old patient with type 2 diabetes mellitus and both clinical and biochemical nephrotic syndrome. The renal biopsy showed membranous nephropathy at stage I-II. There was no evidence of malignancy. The patient was treated with steroids, and two months later the proteinuria had not improved. The objects under discussion are the factors that should lead to suspect the existence of glomerulonephritis, other than diabetic glomerulosclerosis, suggesting the need for kidney biopsy. We also focus on the prognostic and therapeutic relevance, as well as on the common pathogenic aspects.
Insights
An elderly patient with type 2 diabetes mellitus presented with nephrotic syndrome. Kidney biopsy revealed membranous nephropathy, unresponsive to steroid treatment, highlighting the need for considering glomerulonephritis beyond diabetic kidney disease.
Area of Science:
- Nephrology
- Diabetology
- Pathology
Background:
- Type 2 diabetes mellitus is a common cause of chronic kidney disease.
- Nephrotic syndrome in diabetic patients often suggests underlying glomerular pathology.
- Distinguishing diabetic glomerulosclerosis from other glomerulonephritides is crucial for appropriate management.
Observation:
- An 85-year-old patient with type 2 diabetes mellitus presented with clinical and biochemical nephrotic syndrome.
- Renal biopsy confirmed stage I-II membranous nephropathy.
- The patient showed no signs of malignancy and did not respond to steroid therapy.
Findings:
- Membranous nephropathy was diagnosed in an elderly diabetic patient with nephrotic syndrome.
- The condition was refractory to standard steroid treatment.
- This case underscores the importance of considering alternative diagnoses in diabetic nephropathy.
Implications:
- Identifying non-diabetic glomerulonephritis is critical for guiding therapy and improving patient outcomes.
- Kidney biopsy is essential for accurate diagnosis when diabetic glomerulosclerosis is suspected but clinical presentation is atypical.
- Understanding pathogenic links between diabetes and other glomerular diseases can inform future research and treatment strategies.