Treat underlying/exacerbating factors (e.g. antimicrobials for infection, optimize volume/hemodynamics for pulmonary hypertension patients, bronchodilators for concomitant obstructive<unk><unk> 
Support oxygenation and ventilation
Specific<unk>  treatments vary, but many respond to steroids, sometimes at high doses
See management section of idiopathic pulmonary fibrosis
See management section of idiopathic pulmonary fibrosis
Interstitial lung disease
Interstitial pneumonias 
Pneumoconiosis
Lung malignancy
Atypical pneumonia
Aspiration pneumonia or pneumonitis
Lung transplant complications
Bacterial, viral, or fungal pneumonia