Prolactin-secreting adenoma in a myasthenic patient

A case of pituitary adenoma in a patient with myasthenia gravis as well as hypothyroidism, adrenocortical hypopituitarism, and diabetes mellitus is presented. The favorable response of this man's myasthenic symptoms after removal of the adenoma and a possible relationship between the symptomatic expression of myasthenia and a functional hypothalamo-hypophyseal axis are discussed. A link between myasthenia gravis and other autoimmune phenomena is hypothesized.