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Temporal arteritis

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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Temporal arteritis is a chronic vascular disease of unknown origin occurring in the elderly, characterized by granulomatous inflammation in the wall of medium-size and large arteries (1).

Although any large artery may be affected, it is the branches of the carotid artery that result in the majority of the symptoms and signs. The condition primarily affects the aorta and its extracranial branches (2).

There is a significant clinical overlap with polymyalgia rheumatica.

The American College of Rheumatology considers that 3 of the 5 developed diagnostic criteria must be met to support diagnosis of temporal arteritis.

Criterion

Definition

Patient age older than 50 years at disease onset

Development of symptoms or findings beginning when a patient is older than 50 years

New headache

New onset or new type of localized pain in the head

Temporal artery abnormality

Temporal artery tenderness on palpation or decreased temporal artery pulse, unrelated to arteriosclerosis of the cervical arteries

Elevated ESR

ESR greater than 50 mm per hour by the Westegren method

Abnormal biopsy

Biopsy specimen with artery showing vasculitis characterized by a pre-dominance of mononuclear cell infiltration or granulomatous inflammation, usually with multinucleated giant cells

Suspect giant cell arteritis if the person is aged 50 years or older with at least one of (4):

  • A new onset localized headache that is usually unilateral, in the temporal area, but is occasionally diffuse or bilateral
  • A temporal artery abnormality such as tenderness, thickening, or nodularity (present in 45–75% of people with the condition). Occasionally the overlying skin is red, and pulsation may be reduced or absent.

Reference:


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The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.

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