Polymyalgia rheumatica (PMR) is the second most common autoimmune rheumatic disease after rheumatoid arthritis, with a lifetime risk of 2.4% for women, and 1.7% for men. Giant cell arteritis (GCA), previously known as temporal arteritis, is a systemic vasculitis of arteries that typically affects the cranial arteries. GCA is a medical emergency because it can lead to ischemic optic neuropathy and irreversible vision loss. About 15% of people with PMR develop GCA, while about 50% people with GCA will have PMR. The presentation of both conditions can be vague, and diagnosis is therefore often delayed or missed in clinical practice.Polymyalgia rheumatica (PMR) and Giant Cell Arteritis (996 downloads)
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