Raynaud's syndrome occurs in all of the following except: September 2007

Ans. C: Osteoahritis Although Raynaud phenomenon has been described with various autoimmune diseases, the most common association is with progressive systemic sclerosis (90% in individuals with scleroderma) and mixed connective-tissue disease (85% prevalence). Raynaud phenomenon has also been described with such diverse diseases as systemic lupus erythematosus (SLE), rheumatoid ahritis and other disorders not classified as autoimmune, including frostbite, vibration injury, polyvinyl chloride exposure, and cryoglobulinemia.