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["Dense deposits" glomerulonephritis: description of a case]
Insights
This case study details dense deposit glomerulonephritis in a 3-year-old girl, a rare presentation of this kidney disease in young children. The findings highlight the importance of early diagnosis and investigation of microhematuria in pediatric nephrology.
Area of Science:
- Pediatric Nephrology
- Renal Pathology
- Immunology
Background:
- Dense deposit glomerulonephritis is a rare kidney disease characterized by electron-lucent deposits within the glomerular basement membrane.
- It is often associated with abnormalities in the alternative pathway of the complement system.
- Early onset in children is uncommon, making pediatric cases particularly noteworthy.
Observation:
- A 3-year-old girl presented with asymptomatic microhematuria detected during a routine examination.
- After 1 year and 10 months, persistent microhematuria and hypocomplementemia were noted during hospitalization.
- Subsequent renal biopsy with electron microscopy confirmed intramembranous "dense deposits" consistent with dense deposit glomerulonephritis.
Findings:
- The case represents one of the youngest reported instances of dense deposit glomerulonephritis.
- Persistent microhematuria and low serum complement levels were key indicators.
- Electron microscopy was crucial for definitive diagnosis, revealing characteristic intramembranous dense deposits.
Implications:
- This case underscores the possibility of dense deposit glomerulonephritis presenting at a very young age.
- It emphasizes the need for thorough nephrological evaluation, including complement studies and renal biopsy, in children with persistent microhematuria.
- Further research into the pathogenesis and early management of this condition in pediatric populations is warranted.
Abstract:
The authors report a case of "dense deposits" glomerulonephritis in a girl who showed the first symptoms of asintomatic microhematuria at the age of 3 years during an ambulatorial examination which had been requested from her family doctor. After 1 year and 10 months the girl has been hospitalized and during her stay in the hospital it appeared that she still suffered of microhematuria with very low levels of serum complement. Being these results the same after the various check-ups made after her dismission from the hospital it has been decided to execute a renal biopsy, comprehending also the examination with an electronic microscopy which showed intramembranous "dense deposits" glomerulonephritis. In literature no similar cases under 4 years of age are reported.