[Case report of pheochromocytoma with an atypical localization].

One of the endocrine causes of arterial hypertension is pheochromocytoma, usually located in the adrenal gland medulla. Extra-adrenal tumor locations are seldom encountered, and this can considerably complicate the diagnostic procedure. If a distinct clinical manifestation exists, supported by the finding of elevated catecholamine values, it is essential to persistently and carefully search for the place of their increased production. Such an attitude is completely justified in regard to the knowledge that this endocrinologically conditioned hypertension can be permanently and successfully solved with a surgical procedure. A case of pheochromocytoma has been presented with an atypical mediastinal location, prolonged and complicated diagnostic procedure, which has been successfully solved by surgery.