[Increased insulin-sensitivity as a 1st indication of Addison's disease in a juvenile diabetic patient].

Case report on a 25-year-old patient with diabetes mellitus which is difficult to be controlled. Relapsing vomitting, loss of body-weight, retention of substances normally contained in the urine, hyperpotassaemia, hypernatraemia as well as an increased insulin sensitivity render an additionally existing morbus Addison probable. Confirmation by means of the determination of the Porter-Silver chromogenes. It is referred to the apparantly frequently not understood syntropy in diabetes mellitus and Addison's disease. An autoimmunological process is discussed.