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Differential diagnosis of pneumonia.
| Common | Less common |
|---|---|
| Cardiac failure/pulmonary oedema | Cryptogenic organizing pneumonia |
| Pulmonary embolism | Allergic bronchopulmonary aspergillosis |
| Cancer—primary lung/metastases | Acute pneumonitis—drugs, radiation |
| Adult Respiratory Distress Syndrome (ARDS) | Eosinophilic pneumonia—drugs, idiopathic |
| Pulmonary hemorrhage | |
| Pulmonary vasculitis |
