The adrenal glands consist of the adrenal medulla and adrenal cortex. The adrenal cortex produces mineralocorticoids (aldosterone), glucocorticoids (cortisol and cortisone,) and sex hormones. The adrenal medulla produces epinephrine and norepinephrine, the catecholamines. Tumors can be benign or malignant (in which the prognosis is poor), hormonally active or hormonally inactive. When the adrenal glands become