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Retinal arteriolar calcification in a patient with chronic renal failure
  1. D V Patel,
  2. M P Snead,
  3. K Satchi
  1. Vitreoretinal Service, Box 41, Addenbrooke’s Hospital, Hills Road, Cambridge CB2 2QQ, UK
  1. Correspondence to: Mr M P Snead

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Extraskeletal calcification is a common complication of chronic renal failure. Numerous locations for metastatic calcification have been described. We present an unusual case of calcium deposition in the eye.

Case report

A 33 year old woman developed chronic renal failure at the age of 15 as a result of medullary cystic kidneys. She underwent a renal transplant at the age of 17, which failed 6 years later and so she was maintained on continuous ambulatory peritoneal dialysis.

The patient subsequently developed refractory secondary hyperparathyroidism with ectopic calcification and reduced bone density. Her serum biochemistry between 1992 and 1997 showed a persistently high calcium phosphate product ranging between 3.6 and 8.9 mmol/l (normal range 1.6–3.4 mmol/l) with hypercalcaemia (2.36–2.71 mmol/l (normal range 2.0–2.4 mmol/l)) and hyperphosphataemia (2.36–3.42 mmol/l (normal range …

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