Rare Case-Nephropathic Cystinosis

Authors

  •   S. N. Sivaraj Department of Paediatrics, Madras Medical College, Chennai – 600003, Tamil Nadu
  •   G. Durai Arasan Department of Paediatrics, Madras Medical College, Chennai – 600003, Tamil Nadu
  •   S. Lakshmi Department of Paediatrics, Madras Medical College, Chennai – 600003, Tamil Nadu

DOI:

https://doi.org/10.65129/medical.v1i2.41

Keywords:

Fanconi Syndrome, Lysosomal Storage Disorder, Nephropathic Cystinosis, Polyuria, Rickets

Abstract

Nephropathic cystinosis is a rare autosomal recessive lysosomal storage disorder characterised by defective cystine transport across lysosomal membranes, leading to multiorgan involvement. We report a case of a 5-year-old male child presenting with growth failure, polyuria, rickets, and dyselectrolytemia. Diagnostic evaluation revealed Fanconi-like features and bilateral hydronephrosis. Genetic analysis was suggestive of nephropathic cystinosis. Early initiation of cysteamine therapy is crucial to delay progression to end-stage renal disease.

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Published

2025-06-30

How to Cite

Sivaraj, S. N., Arasan, G. D., & Lakshmi, S. (2025). Rare Case-Nephropathic Cystinosis. Journal of Medical and Medical Specialities, 1(2), 114–117. https://doi.org/10.65129/medical.v1i2.41

Issue

Section

Case Series

References

1. Gahl WA, Thoene JG, Schneider JA. Cystinosis. N Engl J Med. 2002; 347:111-121. https://doi.org/10.1056/NEJMra020552 PMid:12110740.

2. Emma F, Nesterova G, Langman C, Labbé A, Cherqui S, Goodyer P, et al. Nephropathic cystinosis: An international consensus document. Nephrol Dial Transplant. 2014; 29 Suppl 4:iv87-iv94. https://doi.org/10.1093/ndt/gfu090 PMid:25165189 PMCid:PMC4158338.

3. National Organization for Rare Disorders. Cystinosis. Available from: https://rarediseases.org

4. Town M, Jean G, Cherqui S, Attard M, Forestier L, Whitmore SA, Callen DF, Gribouval O, Broyer M, Bates GP, van’t Hoff W, Antignac C. A novel gene encoding an integral membrane protein is mutated in nephropathic cystinosis. Nature Genetics. 1998; 18(4):319–324. https://doi.org/10.1038/ng0498-319.

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