This report concerns two pheochromocytomas of renal vasculary pedicle. Diagnosis is made on clinical features and urinary vanylmandelic acid excretion rate. Localisation is made by arteriography. In one case, there is a renal artery compression, and in the other the tumor is vascularised by lombar artery with hypoplasic ipsilateral kidney. These two cases stress the problem of the respective responsibility of both pheochromocytoma and renovascular disease in hypertension genesis. Beside the clinical and biological context pre-operatively, the sulpiride and propranolol tests may have a discrimination value. Excision of the tumor afforded complete relief of symptoms, the two patients remained normotensive three years later.