Myasthenia gravis associated with adrenocortical insufficiency. Report of two cases.

Two cases of Addison's disease associated with myasthenia gravis are reported. This association has been described only rarely in the literature. In the first case, there were marked immunological abnormalities. It is most likely that the origin of the adrenocortical insufficiency in the second case is tuberculous. The pathogenetic mechanism of these associations is briefly discussed.