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Questions and Answers about Polymyalgia Rheumatica and Giant Cell Arteritis

What Is Polymyalgia Rheumatica?

Polymyalgia rheumatica is a rheumatic disorder associated with moderate-to-severe musculoskeletal pain and stiffness in the neck, shoulder, and hip area. Stiffness is most noticeable in the morning or after a period of inactivity, and typically lasts longer than 30 minutes. This disorder may develop rapidly; in some people it comes on literally overnight. But for most people, polymyalgia rheumatica develops more gradually.

The cause of polymyalgia rheumatica is not known. But it is associated with immune system problems, genetic factors, and an event, such as an infection, that triggers symptoms. The fact that polymyalgia rheumatica is rare in people under the age of 50 and becomes more common as age increases suggests that it may be linked to the aging process.

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Polymyalgia rheumatica usually resolves within 1 to 2 years. The symptoms of polymyalgia rheumatica are quickly controlled by treatment with corticosteroids, but symptoms return if treatment is stopped too early. Corticosteroid treatment does not appear to influence the length of the disease.

What Is Giant Cell Arteritis?

Giant cell arteritis, also known as temporal arteritis and cranial arteritis, is a disorder that results in inflammation of arteries of the scalp (most apparent in the temporal arteries, which are located on the temples on each side of the head), neck, and arms. This inflammation causes the arteries to narrow, impeding adequate blood flow. For a good prognosis, it is critical to receive early treatment, before irreversible tissue damage occurs.

How Are Polymyalgia Rheumatica and Giant Cell Arteritis Related?

It is unclear how or why polymyalgia rheumatica and giant cell arteritis frequently occur together. But some people with polymyalgia rheumatica also develop giant cell arteritis either simultaneously, or after the musculoskeletal symptoms have disappeared. Other people with giant cell arteritis also have polymyalgia rheumatica at some time while the arteries are inflamed.

When undiagnosed or untreated, giant cell arteritis can cause potentially serious problems, including permanent vision loss and stroke. So regardless of why giant cell arteritis might occur along with polymyalgia rheumatica, it is important that doctors look for symptoms of the arteritis in anyone diagnosed with polymyalgia rheumatica.

Patients, too, must learn and watch for symptoms of giant cell arteritis, because early detection and proper treatment are key to preventing complications. Any symptoms should be reported to your doctor immediately.

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