Keimyung Medical Journal, Vol.7(1) : 172-177, 1988
Pheochromocytoma is a tumor which produces catecholamine and its metabolites and are usually benign unilateral neoplasm of adrenal medulla in more than 80%. In rare cases, it may arise in an extraadrenal sites including perirenal fat, paraganglia, urinary bladder, chest and neck. In less than 1% of hypertension population, pheochromocytoma is a cause of hypertension and most of these cases are curative by surgery. The most common clinical finding is hypertension and it has three frequent symptoms of headache, palpitation and perspiration. The tumor can be diagnosed by urinary excretion of catecholamine and their metabolites such as vanillylmandelic acid and metanephrines. Other tumor, compeuterlized tomogram, 1131 MIBG scitigram, selective arteriogram and selective caval sampling for catecholamine are used. Authors experienced an extraadreanl pheochromocytoma in 71 years old male with intermittent hypertension and huge abdominal mass so reported the case and reviewed literature.