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Adult cystinosis. A case report
Archives of Ophthalmology (Chicago, Ill. : 1960)
|June 1, 1978
Summary
Adult cystinosis can affect multiple organs, including the eyes and kidneys. This case highlights cystine crystals in the conjunctiva but not the kidneys, despite renal disease.
Area of Science:
- Ophthalmology
- Nephrology
- Medical Genetics
Background:
- Adult cystinosis is a rare lysosomal storage disorder characterized by cystine accumulation.
- Ocular and renal manifestations are common, but presentation can vary.
- This case involves a patient initially suspected of retinal detachment.
Observation:
- A 41-year-old man presented with suspected retinal detachment.
- Examination revealed retinoschisis, moderate renal disease, and conjunctival cystine crystals.
- Renal tissue showed hypertensive vascular disease but no cystine crystals.
Findings:
- Conjunctival cystine crystals were confirmed via microscopy and chemical analysis.
- Excessive cystine confirmed in conjunctival samples.
- Kidney tissue analysis revealed no significant cystine accumulation, despite renal disease.
Implications:
- This case underscores the variable distribution of cystine deposition in adult cystinosis.
- Ocular findings may be more prominent than renal crystalline deposits in some patients.
- Highlights the importance of comprehensive evaluation in suspected metabolic disorders.