Temporal Artery Biopsy

A small tissue sample from the artery at your temple can confirm or rule out giant cell arteritis, a condition that puts your eyesight at real risk if it isn’t treated. The procedure itself takes around half an hour under local anaesthetic.

temporal artery biopsy in progress inside the Eyes Defined clinic.

Clinical assessment in progress. Presentation and procedure details vary by patient.

temporal artery biopsy explained

What Is a Temporal Artery Biopsy?

A temporal artery biopsy removes a short segment of the artery running just under the skin at your temple, so it can be examined under a microscope. The result confirms or rules out giant cell arteritis, an inflammatory condition of the blood vessels that can threaten your eyesight if it isn’t treated promptly.

The procedure is done under local anaesthetic as a day case. A small incision exposes a short length of artery, which is removed and sent for histopathology, and stitches close the site. Most people go home within the hour.

Because giant cell arteritis can cause sudden, permanent vision loss, steroid treatment usually starts before the biopsy result comes back, not after. The biopsy confirms the diagnosis; it doesn’t hold up treatment for it.

Signs You May Need a Temporal Artery Biopsy

Could it be something else?

Migraine and tension headache are far more common than giant cell arteritis and don’t usually come with scalp tenderness or jaw pain. Sinusitis can cause similar discomfort around the temple; see our eye pain page for that broader picture. A proper assessment, including blood tests, is the only reliable way to tell these apart.

Sudden vision loss, double vision, or a new severe headache with jaw pain can mean giant cell arteritis is actively threatening your sight.

This needs same-day assessment, and often treatment, before any test results are back. Don’t wait for a routine appointment.

When Is a Temporal Artery Biopsy Needed?

A biopsy is recommended when specific symptoms or test results raise real suspicion of giant cell arteritis.

New Headache Over 50

A new type of headache, particularly felt at the temple, in anyone over 50 is one of the most common triggers for investigation.

Jaw Claudication

Pain, tiredness, or cramping in the jaw muscles while chewing is a distinctive sign that points more specifically toward giant cell arteritis than a typical headache does.

Visual Disturbance

Blurred vision, double vision, or a temporary loss of vision in one eye raises the urgency of investigation considerably, since vision loss from untreated disease can be permanent.

Raised Inflammatory Markers

Blood tests showing a raised ESR or CRP, alongside the right symptoms, are often what prompts a referral for biopsy in the first place.

A Biopsy Confirms What Blood Tests Can't

Symptoms and blood tests can point strongly toward giant cell arteritis, but only a tissue sample confirms it. That distinction matters when a diagnosis carries lifelong treatment decisions and, for some patients, months or years of steroid medication.

1

Assessment

Mr Aziz reviews your symptoms, examines the artery at your temple, and checks for the signs that distinguish giant cell arteritis from other causes of headache.

2

Procedure

The biopsy itself takes around 20 to 30 minutes under local anaesthetic, removing a short segment of artery for histopathology.

3

Results and Plan

Results are usually available within one to two weeks, and Mr Aziz adjusts your treatment plan based on what they show, alongside your ongoing symptoms.

Diagnostic Options

The right diagnostic approach depends on how urgently a diagnosis is needed and what your initial assessment shows.

Temporal Artery Biopsy

The most definitive test, examining a small tissue sample directly under a microscope. Recommended when the diagnosis needs to be confirmed with certainty, particularly before committing to long-term steroid treatment.

Temporal Artery Ultrasound

A non-invasive scan that can show characteristic changes in the artery wall. Increasingly used as a first-line test, sometimes avoiding the need for biopsy altogether.

Immediate Steroid Treatment

Where vision is at risk, steroid treatment starts straight away, before biopsy or ultrasound results are back. Protecting sight takes priority over waiting for confirmation.

Related reading

Frequently asked questions.

What is a temporal artery biopsy for?

It confirms or rules out giant cell arteritis, an inflammatory condition affecting blood vessels that can threaten your eyesight if untreated.

The procedure is done under local anaesthetic, so you shouldn’t feel pain during it. Mild soreness at the site for a few days afterward is normal.

The procedure itself takes around 20 to 30 minutes, and most people go home within the hour.

A small scar at the temple is normal, and it’s typically placed along the hairline or within an existing skin crease to keep it as unnoticeable as possible.

Results are usually available within one to two weeks.

A negative biopsy doesn’t completely rule out giant cell arteritis, since the artery can be inflamed in patches. Your symptoms, blood tests, and clinical judgement still guide the diagnosis and treatment plan.

No. Steroid treatment for suspected giant cell arteritis shouldn’t be delayed for a biopsy, and the biopsy can still show useful changes for a couple of weeks after steroids start.

New headache, scalp tenderness, jaw pain when chewing, visual disturbance, and general symptoms such as fatigue, fever, or weight loss are the pattern to watch for.

Yes, they’re two names for the same condition. Giant cell arteritis is the more clinically accurate term, since it can affect other arteries beyond the temples.

Yes, untreated giant cell arteritis can cause sudden and permanent vision loss, which is why prompt assessment and treatment matter so much.

No, it’s routinely done under local anaesthetic as a day case, without the need for a general anaesthetic.

It’s performed by a surgeon with the relevant training, in this case assessed, planned, and carried out personally by Mr Ahmad Aziz.

Ultrasound is increasingly used as a first-line test and can be highly suggestive of giant cell arteritis, but biopsy remains the most definitive confirmation when certainty matters most.

Ideally within one to two weeks of starting steroid treatment, since the biopsy can still show diagnostic changes within that window.

Yes. Jaw claudication is a recognised sign of giant cell arteritis, a condition that, left untreated, poses a direct risk to vision.

Recovery is usually straightforward. Mild soreness and bruising at the site settle within a week or two, and most people resume normal activities the next day.

No. Biopsy is reserved for people with symptoms or test results that specifically raise suspicion of giant cell arteritis, not for headaches in general.

It mostly affects people over 50 and becomes more common with age, most often diagnosed in people in their seventies. It’s rare under 50.

es, relapse is possible, sometimes as steroid doses are reduced. Ongoing monitoring of symptoms and inflammatory markers helps catch a relapse early.

ESR and CRP, two markers of inflammation, are typically checked alongside a full blood count, and raised levels support the case for biopsy.

Yes. It can be arranged privately, with assessment, the procedure itself, and follow-up all coordinated by the same clinician rather than passed between departments.

Seek same-day emergency assessment. Sudden vision loss alongside a new headache, especially in someone over 50, needs urgent evaluation for giant cell arteritis, not a routine appointment.

Not Sure If This Is What You Need?

A specialist assessment will give you clarity — and a plan.

BOOK A CONSULTATION

[contact-form-7 id="1630" title="Book Now"]