​Differential diagnosis of primary pulmonary syndromes causing interstitial lung disease

​Differential diagnosis of primary pulmonary syndromes causing interstitial lung disease
-bronchiolitis obliterans organizing pneumonia 
-idiopathic fibrosing interstitial pneumonia / idiopathic pulmonary fibrosis 
-acute interstitial pneumonia
respiratory bronchiolitis associated interstitial lung disease
-usual interstitial pneumonia 
-non specific interstitial pneumonitis 
-desquamative interstitial pneumonitis