All of the following are true about Raynaud's disease, except:
More, common in females
Positive Antinuclear Antibodies
Most common cause of Raynaud's phenomenon
Has good prognosis
Raynaud's disease is not associated with anti nuclear antibodies (ANA's). ANA's are seen in sjogren's syndrome, rheumatoid ahritis, autoimmune hepatitis, scleroderma, polymyositis & dermatomyositis. Ref: CMDT 2006 Edition, Page 464-465; Harrison's Principles of Internal Medicine, 16th Edition, Page 1489.