Idiopathic pulmonary fibrosis

Idiopathic pulmonary fibrosis (IPF) is a rare, progressive illness of the respiratory system, characterized by the thickening and stiffening of lung tissue, associated with the formation of scar tissue. It is a type of chronic scarring lung disease characterized by a progressive and irreversible decline in lung function. [Source: Wikipedia ]

Bronchiolar emphysema
Chronic interstitial pneumonitis
Diffuse chronic fibrosing interstitial pneumonitis
Diffuse interstitial fibrosis
Fibrosing alveolitis
Muscular cirrhosis
Organizing interstitial pneumonia
Sclerosing alveolitis
Usual interstitial pneumonitis
OrphaNet reference
Idiopathic pulmonary fibrosis 
May Cause
Bilateral basilar lung disease
Chronic Kerley lines
End-stage interstitial fibrosis
Ground-glass pulmonary opacity
Ill-defined multifocal lung opacities
Interstitial lung fibrosis
Localized chronic pulmonary opacity
Lower lung disease
Peribronchovascular interstitial thickening
Right ventricular enlargement
Widespread small irregular lung opacities