Is a Pituitary tumour cancer ?

The great majority of pituitary tumours are benign — non-cancerous growths called adenomas. They do not spread to other parts of the body. What matters is their size and whether they affect hormone levels or press on nearby structures, all of which specialist assessment establishes.

Will I need Surgery ?

Not necessarily. Many pituitary conditions are managed with medication alone — some tumours even shrink in response to treatment. Surgery is reserved for situations where it is the most effective option, and your consultant will explain clearly whether and why it might be recommended.

Is " Diabetes insipidus the same as Diabetes?

No — despite the shared name, they are unrelated. Diabetes insipidus is a disorder of water balance caused by a pituitary hormone problem, leading to excessive thirst and urination. It has nothing to do with blood sugar or the diabetes (diabetes mellitus) most people are familiar with.

Why do Pituitary problems affect vision ?

The nerves that carry signals from the eyes pass very close to the pituitary gland. A tumour that grows upward can press on these nerves, classically affecting peripheral (side) vision. This is why visual assessment is an important part of diagnosis, and why new visual symptoms should be checked promptly.

Do I need a referral to be seen?

No referral is required for self-pay patients. If you're using private medical insurance, your insurer may ask for a GP referral — our team can guide you through this when you get in touch.

CONDITIONS · PITUITARY & ENDOCRINE HEALTH

Pituitary Disorders

Often called the body's "master gland", the pituitary directs much of the hormonal system. When it produces too much or too little of a hormone, the effects can reach across the whole body — and careful, specialist assessment is essential. Personalised care from consultant endocrinologist Dr Sheharyar Qureshi.

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How pituitary disorders are diagnosed

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At a glance

The pituitary controls many of the body's other hormone glands
Most pituitary tumours are benign and non-cancerous
Symptoms can be subtle and develop slowly over years
Managed with specialist, often multidisciplinary, care

01 — UNDERSTANDING THE GLAND

What is the pituitary gland?

The pituitary is a pea-sized gland that sits at the base of the brain, just behind the eyes. Despite its size, it plays an outsized role: it produces hormones that regulate many of the body's other endocrine glands — including the thyroid, the adrenal glands and the reproductive organs — as well as controlling growth, metabolism, the body's water balance and the production of breast milk.

Because the pituitary sits at the top of so many hormonal pathways, a problem here can have wide-ranging effects. Disorders generally arise in one of two ways: the gland producing too much of a particular hormone, or too little. Many are caused by a benign growth — a pituitary adenoma — which can affect hormone output, or press on nearby structures such as the nerves that serve the eyes.

Pituitary conditions are often complex and can develop gradually, with symptoms that are easy to attribute to other causes. This is precisely why specialist endocrine assessment is so valuable — both in reaching the right diagnosis and in coordinating the right treatment.

02 — SIGNS & SYMPTOMS

How pituitary disorders present

Symptoms fall broadly into two groups: those caused by hormonal imbalance, and those caused by a growth pressing on nearby structures. Many people have a combination of both.

From imbalance

When hormone levels are too high or too low, effects are felt across the body.

Hormonal effects

Irregular or absent periods and fertility difficulties
Unexplained weight change and persistent fatigue
Changes in libido or sexual function
Gradual changes to hands, feet or facial features
Excessive thirst and frequent urination

From a growth

A larger tumour can press on structures around the gland, producing its own symptoms.

Pressure effects

Headaches, sometimes persistent
Visual disturbance, classically loss of peripheral vision
Difficulty with side or edge vision when driving or reading
These symptoms always warrant prompt assessment

03 — THE CONDITIONS WE TREAT

Pituitary conditions

The pituitary can be affected in several distinct ways. Each condition has its own pattern of symptoms and its own approach to treatment.

Pituitary adenoma

Benign pituitary tumour

A non-cancerous growth on the gland — the most common pituitary disorder. Effects depend on its size and whether it produces hormones.

Prolactinoma

Excess prolactin

A common, usually benign tumour producing too much prolactin, which can disrupt periods, fertility and cause milk production.

Acromegaly

Excess growth hormone

Too much growth hormone in adulthood, causing gradual changes to the hands, feet and facial features, and wider health effects.

Cushing's disease

Excess cortisol

A pituitary tumour driving overproduction of cortisol, leading to weight gain, skin changes, high blood pressure and more.

Hypopituitarism

Hormone deficiency

Reduced output of one or more pituitary hormones, which may need replacing. Can follow a tumour, surgery or other causes.

Diabetes insipidus

Water balance disorder

A disturbance of the hormone controlling water balance — unrelated to diabetes mellitus — causing excessive thirst and urination.

04 — DIAGNOSIS

How pituitary disorders are diagnosed

Because the pituitary influences so many hormones, diagnosis involves building a detailed picture — combining specialist hormone testing, dedicated imaging and, where relevant, assessment of vision.

Detailed consultation

A thorough review of your symptoms, their timeline, medical history and medications, alongside a clinical examination.

Hormone blood tests

Comprehensive testing of the pituitary hormones and the glands they control — sometimes including dynamic tests, where hormone levels are measured in response to a stimulus.

MRI imaging

A detailed scan of the pituitary is the key imaging test, identifying and characterising any adenoma and its relationship to surrounding structures.

Visual field assessment

Where a tumour is close to the visual pathways, formal testing of the visual fields checks whether vision is affected and provides a baseline.

05 — TREATMENT & MANAGEMENT

Care tailored to the condition

Treatment depends entirely on the specific disorder — the hormone involved, and whether a growth is present and affecting nearby structures. Many pituitary conditions are managed very effectively.

Medication

For several conditions, medication is the first-line treatment — able to normalise hormone levels and, in some cases such as prolactinoma, to shrink the tumour itself.

Hormone replacement

Where the pituitary is underactive, carefully balanced replacement of the missing hormones restores normal function, with ongoing specialist monitoring.

Surgery & onward care

Some tumours are best treated surgically, or occasionally with radiotherapy. In these cases your endocrinologist coordinates care with specialist neurosurgical and other teams.

06 — COORDINATED EXPERTISE

A joined-up approach to complex care

Pituitary conditions often benefit from more than one specialty working together. Your endocrinologist remains the constant thread throughout — coordinating each element of your care and ensuring nothing is missed.

Specialist endocrine assessment and long-term follow-up
Coordination with neurosurgery and radiology where required
Input from ophthalmology when vision is involved
Clear communication with you at every stage

07 — COMMON QUESTIONS