Osteomalacia presenting as chorea.Br Med J 1975; 3 doi: https://doi.org/10.1136/bmj.3.5976.136 (Published 19 July 1975) Cite this as: Br Med J 1975;3:136
- D J Hosking,
- A Williams,
- R B Godwin-Austen,
- S P Allison
A 16-year-old epileptic developed chorea. He had osteomalacia, hypocalcaemia, and hyperphosphataemia, which were due not to hypoparathyroidism but to vitamin D deficiency--itself secondary to longstanding dietary deficiency and anticonvulsant drug administration.