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Motor neuron disease in Nova Scotia.

Fifty-two cases of motor neuron disease seen in two Halifax hospitals were reviewed.Thirty-three (63.5%) had amyotrophic lateral sclerosis, 14 (26.9%) had primary muscular atrophy, four (7.7%) had bulbar palsy and one (1.9%) had primary lateral sclerosis. There were no unusual features in this series when compared with a similar series from the United States. These cases were used to illustrate the features of this disorder and to comment on recent research observations.