Anti-Jo-1 Syndrome presenting as cryptogenic organizing pneumonia

AbstractA 50-year-old Chinese lady presented with subacute onset of dyspnoea, bilateral infiltrates on chest X-ray and type I respiratory failure. There were minor symptoms of arthralgia and myalgia. Subsequent investigations confirmed that she had organizing pneumonia, polymyositis and serum anti-Jo-1 antibody. Treatment with corticosteroids resulted in prompt improvement of the respiratory condition and myositis