Adrenal Physiology

Introduction This article looks at adrenal physiology and explains the production and effects of adrenal products. For more information on mechanisms of blood pressure regulation, secretion of ions, and other effects related to the...

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Conn’s Syndrome

Introduction Conn’s syndrome is primary hyperaldosteronism – an excess of aldosterone. As opposed to Cushing’s Syndrome – which is an excess of glucocorticoids, and as opposed to Addison’s disease which is a lack of...

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Phaeochromocytoma

Introduction Phaeochromocytoma is a neuroendocrine tumour of the medulla of the adrenal glands. It secretes large quantities of  the catecholamines noradrenaline, and to a lesser extent, adrenaline.   Epidemiology Rule of 10: 10% familial,...

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