

Have you ever experienced an intense headache that feels different from your usual migraines? Or felt pain in your scalp when combing your hair? These may not be just passing symptoms — they could be warning signs of a serious autoimmune condition known as Giant Cell Arteritis (GCA).This disease mainly affects older adults and targets the large arteries in the head and neck. If not diagnosed and treated early, it can lead to serious complications like vision loss.In this comprehensive medical guide from Dalili Medical, we walk you through everything you need to know about Giant Cell Arteritis:
✅ What is it?
✅ What causes it?
✅ How is it diagnosed?
✅ What are the latest medical and natural treatment options?
Keep reading to explore the full picture of Giant Cell Arteritis — and how to manage it with awareness and smart decisions.
Giant Cell Arteritis is a chronic autoimmune condition that causes inflammation in the walls of medium- and large-sized arteries, especially those in the head and neck — such as the temporal artery.
It primarily affects people over the age of 50 and is considered a medical emergency in rheumatology due to the risk of permanent vision loss.
Persistent, severe headache (often on one side of the head)
Jaw pain while chewing (known as jaw claudication)
Blurred or temporary vision loss — may progress to permanent blindness if untreated
Scalp tenderness, especially when touching or combing hair
General fatigue, appetite loss, and unexplained weight loss
⚠️ Warning: If you notice these symptoms, consult a rheumatologist or neurologist immediately.
Yes, GCA is a serious medical condition. If left untreated, it can lead to:
Permanent vision loss (in one or both eyes)
Stroke
Damage to large blood vessels, such as the aorta
There’s no direct link between Giant Cell Arteritis and Rheumatoid Arthritis (RA).
However, GCA is often associated with Polymyalgia Rheumatica (PMR) — another autoimmune condition common in older adults.
Diagnosis typically involves:
Physical examination, especially of the temporal artery
Blood tests:
Elevated ESR (Erythrocyte Sedimentation Rate)
High CRP (C-reactive protein)
Imaging tests:
Temporal artery ultrasound
MRI or PET scan in selected cases
Temporal Artery Biopsy to confirm inflammation and giant cells in the artery wall.
Treatment usually includes:
Started immediately to prevent vision loss.
Tocilizumab (Actemra) is often prescribed in chronic or recurrent cases to help reduce steroid use.
Used in some cases to lower corticosteroid doses and maintain remission.
Long-term medical supervision is required to prevent relapses and monitor side effects.
Surgery is rare and only considered in complications such as:
Severe artery blockage
Aortic aneurysm (requires stents or vascular surgery)
Treatment usually remains medical unless life-threatening vascular issues develop.
GCA doesn’t typically “go away” permanently, but it can be effectively managed with timely treatment and regular monitoring.
With proper therapy, symptoms can improve significantly and serious complications — like vision loss or stroke — can be prevented.
However, relapses may occur, so ongoing follow-up is essential.
Adopting a healthy lifestyle can support treatment and reduce risks:
Follow your doctor’s treatment plan carefully
Eat a diet rich in calcium and vitamin D — especially important when using steroids
Engage in light exercise such as walking or yoga to improve circulation
Regularly monitor blood pressure, blood sugar, and cholesterol
Avoid smoking and reduce inflammation-triggering habits
Giant Cell Arteritis (GCA) is an autoimmune disease that causes inflammation in artery walls, especially those in the head and neck.
It is most common in individuals over 50 and can lead to serious complications like vision loss and stroke if not diagnosed early.
If you or a loved one experience persistent headaches, jaw pain, or vision changes, don’t ignore the signs — seek medical advice immediately.
Giant Cell Arteritis (GCA) is a chronic autoimmune disease that causes inflammation in the walls of medium and large arteries, especially those in the head and neck, such as the temporal arteries.
It most commonly affects individuals over the age of 50, and women are affected more often than men.
The most common type
Affects the temporal arteries on the sides of the head
Symptoms:
Throbbing headache
Scalp tenderness
Jaw pain while chewing
Vision disturbances
Affects the arteries supplying the eyes
Can cause sudden, permanent vision loss if not treated immediately
Symptoms:
Blurred vision
Sudden vision loss
Eye pain
Involves large arteries like the aorta and its branches
Symptoms:
General fatigue
Weight loss
Fever
Pain in shoulders or hips
Occurs in patients with Polymyalgia Rheumatica (PMR)
GCA and PMR frequently overlap in older adults
Symptoms:
Muscle and joint pain
Morning stiffness
GCA-related vascular symptoms
Affects major arteries such as the subclavian and brachial arteries
May lead to aortic aneurysms or dissection
Symptoms:
Often silent or nonspecific
May present as aortic dilation or chest discomfort
While the exact cause is unknown, several risk factors and potential triggers have been identified:
The immune system mistakenly attacks artery walls, causing inflammation.
Family history may increase the risk.
Certain viral infections might trigger immune overreaction.
Risk increases significantly after age 50.
Women are nearly twice as likely to develop GCA as men.
More common in people of Northern European descent, especially Scandinavian and Caucasian populations.
Recognizing early symptoms is essential to prevent serious complications such as blindness:
Persistent headache, especially in one temple
Scalp tenderness when touching or brushing hair
Jaw pain during chewing (jaw claudication)
Vision problems – blurred, double, or temporary loss
Fatigue, appetite loss, and weight loss
Early and accurate diagnosis is crucial to avoid vision loss or life-threatening complications. Diagnostic steps include:
Elevated ESR (Erythrocyte Sedimentation Rate)
High CRP (C-Reactive Protein) – both indicate inflammation
Confirms diagnosis by detecting inflammatory cells (giant cells) in the artery wall.
Ultrasound of temporal arteries to detect vessel inflammation
MRI or PET Scan may be used to assess large-vessel involvement
Important Note:
Even if the biopsy result is negative, diagnosis may still be made based on clinical symptoms and response to treatment.
Fever
Fatigue
Loss of appetite
Unexplained weight loss
Pain in the neck, shoulder, or arm
Pain may appear in unexpected areas.
Morning stiffness
Especially in the neck or shoulders, commonly associated with Polymyalgia Rheumatica.
Neurological symptoms
Dizziness
Stroke (rare, when cerebral arteries are involved)
Early treatment is critical to reduce the risk of serious complications, especially permanent vision loss. Treatment options include:
Prednisone is used in high doses initially.
Works quickly to reduce inflammation.
Dosage is tapered gradually based on patient improvement.
⚠️ Important: Treatment should begin even before diagnosis is confirmed to avoid risk of blindness.
Tocilizumab (Actemra)
Used for advanced cases or steroid-intolerant patients
Helps reduce inflammation and steroid dependence
To relieve muscle stiffness and discomfort
Example: Paracetamol or Ibuprofen (under medical supervision)
Due to corticosteroids’ impact on bone and metabolism:
Calcium + Vitamin D: Prevent osteoporosis
Regular monitoring of blood pressure, blood sugar, and cholesterol
These are supportive only and should be taken under medical supervision:
Turmeric (Curcumin): Potent anti-inflammatory properties
Ginger: May help reduce inflammation and pain
Omega-3 (Fish Oil): Supports cardiovascular health
❗Warning: Herbal supplements must not replace medical treatment.
Routine tests to monitor inflammation (ESR, CRP)
Regular eye exams to catch early visual decline
Consistent follow-ups with a rheumatologist to adjust treatment plans
Surgery is not a first-line treatment for GCA, as the primary approach is medical (mainly corticosteroids). However, in some complex cases with serious complications, surgical intervention may be necessary:
Chronic inflammation may cause narrowing or blockage in large arteries (e.g., aorta or carotid arteries). Surgical options include:
Stent placement to open a blocked artery
Vascular bypass surgery to restore blood flow
Prolonged inflammation can weaken artery walls, causing an aneurysm, which risks rupture. Emergency surgery may be needed to repair or replace the artery wall.
If the optic nerve is threatened due to reduced blood flow, high-dose corticosteroids are the immediate treatment. Surgery is considered only in extreme cases to improve eye circulation.
Without prompt treatment, GCA can lead to life-altering or life-threatening complications:
One of the most serious outcomes, caused by anterior ischemic optic neuropathy (AION) due to reduced blood flow to the optic nerve.
Delay in treatment can result in irreversible blindness in one or both eyes.
The inflammation may extend to the aorta, leading to wall weakening and aneurysm formation.
This can rupture suddenly, causing fatal internal bleeding if not surgically treated.
Inflamed arteries supplying the brain may restrict blood flow, raising the risk of ischemic stroke, which can lead to:
Paralysis
Permanent neurological deficits
Identifying risk factors can aid in early diagnosis and prevention. The main risk factors include:
GCA almost exclusively affects individuals over 50
Risk increases sharply in those over 70
Women are twice as likely to develop GCA compared to men
May be related to hormonal or immune system differences
More common in individuals of Northern European descent, especially Scandinavians
Much less common in other ethnic groups