<unk>  <unk>  is a chronic inflammatory disease that involves the articular and periarticular parts of the cervical region, shoulder girdle and pelvic girdle.<unk>  affects subjects over the age of 50 years and it is characterized by pain and stiffness in the neck, shoulders, upper arms, hip, and thighs. Although myalgia is one of the symptoms of<unk> , there is no inflammation of the muscles; instead,<unk>  is a disease of the joint that causes synovitis. The diagnosis of<unk>  relies on the clinical findings and laboratory evidence of systemic inflammation.<unk>  is associated with giant cell arteritis. The cause of<unk>  is unknown but it has been suggested that both genetic and environmental factors are implicated. The mainstay of treatment of<unk>  is steroid therapy.
Polymyalgia rheumatica
Fibromyalgia
Eosinophilia myalgia syndrome
Systemic lupus erythematosus
Oligoarthritis
Dermatomyositis
Spondyloarthropathy
Inclusion body myositis