[Phaeochromocytoma with hypokalaemia (two cases) (author's transl)]

Two cases of phaeochromocytoma with hypokalaemia are reported. In the first, a carcinoma, hypokalaemia was potentially secondary to hyperreninaemia and hyperaldosteronism in association with probably paraneoplastic hypercorticism. The other was benign and the origin of isotopically demonstrated potassium deficiency was less clear, because hyperreninaemia, hyperaldosteronism and hypercortisolism were moderate.