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Course: Resolution of Crystalline Retinopathy After Kidney Transplant for Hyperoxaluria

CME Credits: 1.00

Released: 2024-02-15

A 6-month-old infant underwent ophthalmic examination. Anterior segment examination showed corneal crystals in both eyes. Dilated fundus examination revealed intraretinal refractile crystals in both eyes (Figure, A). Systemic investigations revealed hyperoxalosis (29.5 ?mol/L; reference range: <1.8 ?mol/L; to convert to milligrams per milliliter, divide by 11.107) and hyperoxaluria (0.33 mg/mg creatinine; reference range: 0.04-0.11 mg/mg creatinine). Primary hyperoxalosis was considered, and hepatic biopsy was performed. The results were inconsistent with primary hyperoxaluria type 1 or type 2 and showed normal activity of alanine:glyoxylate aminotransferase and glyoxylate reductase, respectively. The patient was diagnosed with unspecified hyperoxalosis and hyperoxaluria and developed kidney failure. At the age of 8 years, kidney transplant was performed.


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