Polymyalgia rheumatica (PMR) is a condition that is frequently linked to giant cell arteritis (GCA) (link). PMR occurs in about 50 % of patients who have GCA, while approximately 15% of patients with PMR develop GCA. There may be a common genetic component between the two disorders. PMR is almost exclusively a disease that affects older adults and is rarely diagnosed in people under the age of 50 years.