- Cryptogenic (idiopathic)
- Extrinsic allergic alveolitis
- Infective (TB)
- Aspiration pneumonia
- Collagen vascular diseases
Symptoms of pulmonary edema include difficulty breathing, coughing up blood, excessive sweating, anxiety and pale skin. If left untreated, it can lead to death.
Pulmonary fibrosis is diagnosed by a plain chest x-ray. The x-ray will show the characteristic the diffuse reticular or reticulo-nodular appearance.