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Chapter 3 — Fatigue and the Connection With Giant Cell Arteritis
Polymyalgia rheumatica does not always affect only muscles and joints.
Because it is an inflammatory condition, some people experience broader symptoms such as fatigue, reduced appetite, low-grade fever, or a general feeling of being unwell.
These symptoms can make the condition even more difficult to recognize because they are not unique to PMR.
There is another reason doctors take PMR seriously: its association with giant cell arteritis (GCA), also known as temporal arteritis.
GCA is a related inflammatory condition affecting medium and large arteries, particularly arteries in the head.
Not everyone with PMR develops GCA, but the two conditions can occur together.
This connection makes certain symptoms especially important.
A person with PMR who develops a new, persistent headache, scalp tenderness, pain when chewing, or changes in vision should seek urgent medical attention.
Vision changes are particularly important because inflammation of arteries supplying the eye can threaten vision if GCA is not treated promptly.
Other possible symptoms of GCA include jaw or tongue pain while chewing, unusual tenderness around the temples or scalp, fever, fatigue, and unexplained weight loss.
These symptoms should not be ignored.
It is also important not to assume that every headache in an older adult is caused by giant cell arteritis. Headaches have many possible causes. The concern becomes greater when a new headache occurs together with other symptoms suggestive of GCA.
The relationship between PMR and GCA is one reason doctors may ask detailed questions about headaches, vision, jaw symptoms, and general health when evaluating someone with suspected PMR.
The key message is simple: new visual symptoms or other symptoms suggestive of giant cell arteritis require prompt medical assessment.
PMR itself can be very uncomfortable, but the associated possibility of GCA is one of the reasons proper diagnosis and follow-up matter.