What causes these conditions?
No one knows what causes the inflammation associated with GCA or PMR. Problems with the immune system and aging are possible factors.
Who gets these conditions?
You are more likely to develop GCA and PMR is you are older than 50 years of age. They are most common in women between 70 and 80 years of age. For unknown reasons, Caucasian people are more likely to develop GCA and PMR than other races.
Management of Giant Cell Arteritis and Polymyalgia Rheumatica by S Meskimen, M.S.N, TD Cook, M.S.N., and RL Blake, M.D. (American Family Physician April 01, 2000, http://www.aafp.org/afp/20000401/2061.html)
Written by familydoctor.org editorial staff