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The clinical and pathological details are described of three patients with demyelinating diseases associated with a glioma, the effects of which proved fatal. The findings suggest that the tumours developed from neoplastic transformation of glia in areas of established demyelination.

SummaryThe case histories are reported of six women who developed chorea while taking oral contraceptive drugs. The chorea that results from taking compounds containing oestrogen and progestogen has many features in common with chorea gravidarum, and the pathogenesis is probably similar. In some of the patients, however, the sudden onset of symptoms suggests a vascular aetiology.

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