Schmidt's syndrome associated with sarcoidosis.

We present a case of Schmidt's syndrome (autoimmune Addison's disease and hypothyroidism) associated with sarcoidosis. There have been only four previous reports of Schmidt's syndrome with sarcoidosis, and a possible fifth with negative autoantibodies. We have been able to find only four other reports of adrenal failure (without hypothyroidism) in sarcoidosis. It is important to be aware of the potential for masking the diagnosis of Addison's disease by steroid treatment.