Table 1 Non-infectious mimics of community-acquired pneumonia

Cardiovascular

 Pulmonary oedema

 Pulmonary embolism

Neoplastic

 Lung cancer

 Endobronchial metastases

 Lymphoma

Immunological disorders

 Vasculitic diffuse alveolar haemorrhage

 Wegener’s granulomatosis

 Cryptogenic organising pneumonia

 Acute interstitial pneumonia

 Sarcoidosis

 Pulmonary alveolar proteinosis

 Systemic lupus erythematosus

 Polymyositis and dermatomyositis

 Acute and chronic eosinophilic pneumonia

Drug toxicity

Radiation pneumonitis