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[Congenital nephrotic syndrome associated with congenital toxoplasmosis]
B Roussel1, J M Pinon, P Birembaut
1Clinique de Pédiatrie et de Puériculture, American Memorial Hospital, Reims.
Abstract:
The authors report the case of a 1 month-old infant presenting with congenital toxoplasmosis associated with nephrotic syndrome and microscopic hematuria. Percutaneous renal biopsy showed a diffuse mild increase in mesangial cells and matrix, but immunofluorescence was negative. Electron microscopy revealed the presence of extensive fusion of foot processes. A review of the nephropathy of congenital toxoplasmosis is presented. Outcome seems to be favorable under steroid therapy. The pathophysiology of nephropathy is discussed, as well as the relationships or coincidence between congenital toxoplasmosis and nephrotic syndrome.
Insights
Congenital toxoplasmosis in infants can cause nephrotic syndrome and hematuria. Early steroid therapy may lead to favorable outcomes, suggesting a link between infection and kidney disease.
Area of Science:
- Pediatric Nephrology
- Infectious Diseases
- Congenital Infections
Background:
- Congenital toxoplasmosis is a parasitic infection transmitted from mother to fetus.
- Nephrotic syndrome is a kidney disorder characterized by protein in the urine.
- Microscopic hematuria indicates the presence of blood in the urine, not visible to the naked eye.
Observation:
- A one-month-old infant presented with congenital toxoplasmosis, nephrotic syndrome, and microscopic hematuria.
- Renal biopsy revealed mesangial cell and matrix increase, with negative immunofluorescence.
- Electron microscopy showed extensive foot process fusion, indicative of podocyte damage.
Findings:
- The study reviews nephropathy associated with congenital toxoplasmosis.
- Steroid therapy appeared to improve the infant's condition.
- Pathophysiology and potential links between congenital toxoplasmosis and nephrotic syndrome are discussed.
Implications:
- This case highlights a potential association between congenital toxoplasmosis and nephrotic syndrome in infants.
- Early diagnosis and treatment, including steroid therapy, may be crucial for managing this condition.
- Further research is needed to elucidate the pathophysiology and relationship between congenital toxoplasmosis and kidney disease.