The occurrence of tumors involving the medulla of the adrenal glands is uncommon enough to arouse interest. The finding of such a tumor in each adrenal gland, complicated by hypertension and by marked generalized arteriosclerosis, in a person of 14 years, whose death was immediately due to cerebral thrombosis, merits report. In a review of the early literature concerning the adrenal glands, there was some confusion, as the early reports were concerned chiefly with the pathologic point of view and neoplasms of these glands were considered rare and of little clinical import. With the increased information on the physiology and pathology of the adrenal glands, there has been greater appreciation of the rôle played by them in causing clinical manifestations of disease. The factors causing associated hypertension in paraganglioma of the adrenal glands are still not definitely known. However, the recent literature is replete with reports of cases of hypertension