Fig. 3From: Patients with pheochromocytoma exhibit low aldosterone renin ratio-preliminary reportsThe scheme of mechanistic hypothesis of the decreased ARR in PCC. Despite of the increased renin activity, patients with PCC showed a relatively low aldosterone levels than those in patients with SCS or NFA. This relatively low aldosterone in patients with PCC may be because of the increased secretion of adrenomedullin and ANPBack to article page