Widespread small irregular lung opacities

Acute respiratory distress syndrome (ARDS) is a type of respiratory failure characterized by rapid onset of widespread inflammation in the lungs. Symptoms include shortness of breath (dyspnea), rapid breathing (tachypnea), and bluish skin coloration (cyanosis). [Source: Wikipedia ]

May Be Caused by
Aluminum pneumoconiosis
Alveolar microlithiasis
Amiodarone
Amyloidosis
Asbestosis
Ascariasis
Asian panbronchiolitis
Atypical mycobacterial infection
Baritosis
Berylliosis
Blastomycosis
Bleomycin
Bronchiolitis
Bronchiolitis obliterans
Bronchiolo-alveolar carcinoma
Bronchopulmonary dysplasia
Busulfan
Chronic aspiration
Chronic bronchitis
Chronic obstructive pulmonary disease
Coal-worker pneumoconiosis
Coccidioidomycosis
Cryptococcosis
Cyclophosphamide
Cystic fibrosis
Dermatomyositis
Desquamative interstitial pneumonitis
Drug reaction
Eosinophilic granuloma
Fat embolism
Gaucher disease
Goodpasture syndrome
Hematogenous metastases
Histoplasmosis
Hypersensitivity pneumonitis
Idiopathic pulmonary fibrosis
Idiopathic pulmonary hemosiderosis
Interstitial pulmonary edema with pulmonary venous hypertension
Legionella pneumonia
Leukemia
Lung trauma
Lymphangitic carcinomatosis
Lymphocytic interstitial pneumonitis
Lymphoma
Melanoma
Melioidosis
Metallic mercury thromboembolism
Methotrexate
Methysergide
Neurofibromatosis
Niemann-Pick disease
Nitrofurantoin
Nonspecific interstitial pneumonitis
Noxious vapors
Oxygen toxicity
Paracoccidioidomycosis
Paragonimiasis
Pneumoconiosis
Polymyositis
Procainamide
Pulmonary leiomyomatosis
Pulmonary lymphangiectasia
Pulmonary lymphangioleiomyomatosis
Pulmonary veno-occlusive disease
Radiation
Recurrent pneumonia
Rheumatoid lung disease
Riley-Day syndrome
Salmonella pneumonia
Sarcoidosis
Schistosomiasis
Scleroderma
Siderosis
Silicosis
Sjögren syndrome
Small airways disease
Stannosis
Staphylococcal pneumonia
Systemic lupus erythematosus
Talc thromboembolism
Talcosis
Thyroid carcinoma metastasis
Toxoplasmosis
Transient tachypnea of the newborn
Tropical pulmonary eosinophilia
Tuberculosis
Tuberous sclerosis
Waldenström macroglobulinemia
Wilson-Mikity syndrome
Aluminum pneumoconiosis
Alveolar microlithiasis
Amiodarone
Amyloidosis
Asbestosis
Ascariasis
Asian panbronchiolitis
Atypical mycobacterial infection
Baritosis
Berylliosis
Blastomycosis
Bleomycin
Bronchiolitis
Bronchiolitis obliterans
Bronchiolo-alveolar carcinoma
Bronchopulmonary dysplasia
Busulfan
Chronic aspiration
Chronic bronchitis
Chronic obstructive pulmonary disease
Coal-worker pneumoconiosis
Coccidioidomycosis
Cryptococcosis
Cyclophosphamide
Cystic fibrosis
Dermatomyositis
Desquamative interstitial pneumonitis
Drug reaction
Eosinophilic granuloma
Fat embolism
Gaucher disease
Goodpasture syndrome
Hematogenous metastases
Histoplasmosis
Hypersensitivity pneumonitis
Idiopathic pulmonary fibrosis
Idiopathic pulmonary hemosiderosis
Interstitial pulmonary edema with pulmonary venous hypertension
Legionella pneumonia
Leukemia
Lung trauma
Lymphangitic carcinomatosis
Lymphocytic interstitial pneumonitis
Lymphoma
Melanoma
Melioidosis
Metallic mercury thromboembolism
Methotrexate
Methysergide
Neurofibromatosis
Niemann-Pick disease
Nitrofurantoin
Nonspecific interstitial pneumonitis
Noxious vapors
Oxygen toxicity
Paracoccidioidomycosis
Paragonimiasis
Pneumoconiosis
Polymyositis
Procainamide
Pulmonary leiomyomatosis
Pulmonary lymphangiectasia
Pulmonary lymphangioleiomyomatosis
Pulmonary veno-occlusive disease
Radiation
Recurrent pneumonia
Rheumatoid lung disease
Riley-Day syndrome
Salmonella pneumonia
Sarcoidosis
Schistosomiasis
Scleroderma
Siderosis
Silicosis
Sjögren syndrome
Small airways disease
Stannosis
Staphylococcal pneumonia
Systemic lupus erythematosus
Talc thromboembolism
Talcosis
Thyroid carcinoma metastasis
Toxoplasmosis
Transient tachypnea of the newborn
Tropical pulmonary eosinophilia
Tuberculosis
Tuberous sclerosis
Waldenström macroglobulinemia
Wilson-Mikity syndrome