Pituitary disorders

The pituitary gland is a small hormone gland at the base of the brain. It is sometimes called the “master hormone gland”, as it produces many important hormones that in turn control many other hormone glands. The pituitary gland is therefore involved in the production of important hormones, such as cortisol, thyroid hormones, sex hormones, growth hormone, prolactin (a hormone that stimulates milk production after childbirth), and anti-diuretic hormone (a hormone which maintains a normal salt and water balance in the body). 

There is a wide range of pituitary disorders. These may include:

Symptoms of pituitary tumours may include headache, nausea and vomiting, or visual disturbances. People with a pituitary tumour may also experience symptoms of pituitary hormone deficiencies or overproduction, depending on the size and type of tumour.

Symptoms of pituitary hormone deficiency would depend on the hormone that is lacking. These include:

Symptoms of pituitary hormone overproduction would depend on the hormone that is being overproduced. These include:

Pituitary tumours can be diagnosed using an MRI scan or CT scan of the pituitary gland.

Blood tests can be used to measure the levels of various pituitary hormones, to determine if they are being overproduced or underproduced.

Treatment for pituitary tumours depend on the type of tumour, the size of the tumour, whether it is compressing any important structures (such as the nerves crucial for vision), and whether it is overproducing pituitary hormones. Based on these factors, observation, surgery, medication, or radiation therapy may be possible treatment options. 

Pituitary hormone deficiencies may be treated using hormone replacement therapies. 

Treatment of pituitary hormone overproduction would depend on the underlying cause. Treatment options include surgery to remove pituitary tumours which cause hormone overproduction, or medication for certain types of hormone overproduction.