The body has two adrenal glands, one sitting above each kidney. Hormones produced by the adrenal glands are vital in controlling body chemistry. If adrenal hormone levels become imbalanced, the effects can be serious, widespread throughout the body and even life- threatening. However, these disorders are fortunately rare.

Adrenal gland disorders may involve either the overproduction or underproduction of adrenal
hormones, leading to Cushing’s syndrome and Addison’s disease respectively. The overproduction of adrenal hormones is most commonly due to the presence of an adrenal tumour, simply removed by surgery.

Adrenal disorders are sometimes due to a pituitary tumour that affects the pituitary gland’s production of hormones called adrenal-stimulating hormones, which control the outflow of hormones from the adrenals.