Acute Airspace Disease
1. Pulmonary edema
2. Pneumonia
3. Aspiration
4. Hemorrhage
Anterior Mediastinal Masses
1. Thymoma
2. Teratoma
3. Substernal thyroid
4. Lymphoma
Opacified Hemithorax
1. Atelectasis
2. Effusion
3. Pneumonia
4. Post-pneumonectomy
Chronic Airspace Disease
1. Alveolar cell ca
2. Alveolar sarcoid
3. Lymphoma
4. Alveolar proteinosis
Large Cavitary Lung Lesions
1. Abscess
2. Carcinoma
3. TB
Bibasilar Interstitial Disease
1. Bronchiectasis
2. Aspiration
3. DIP
4. Asbestosis
5. Sarcoidosis
6. Scleroderma
Micronodular Lung Disease
1. Mets
2. Sarcoid
3. Pneumoconiosis
4. Miliary TB
Pulmonary Fibrosis
1. Pneumoconiosis
2. Interstitial Pneumonia
3. Granulomatous disease
4. Neoplastic disease
5. Idiopathic fibrosis
6. Collagen vascular disease
Small Cavitary Lung Lesions
1. Septic emboli
2. Rheumatoid nodules
3. Squamous or transitional cell mets
4. Wegener’s Granulomatosis
Lymphangitic Spread to the Lungs
1. Lung ca
2. Breast ca
3. Stomach ca
4. Pancreas ca
5. Laryngeal ca
6. Cervical ca
Multiple Lung Nodules
1. Mets
2. Wegener’s granulomatosis
3. Rheumatoid nodules
4. AVMs
5. Septic emboli
Shifting Infiltrates
1. Loeffler’s syndrome
2. ABPA
3. Asthma
4. Polyarteritis
5. Viral pneumonia
Unilateral Hyperlucent Lung
1. Swyer James syndrome
2. Pulmonary embolism
3. Pneumothorax
4. Obstructive emphysema
Rapidly Clearing Airspace Disease
1. Pneumococcal pneumonia
2. Hemorrhage
3. Pulmonary edema
4. Aspiration
Cavitating Pneumonia
1. Staph
2. Strep
3. TB
4. Gram negative (klebsiella)
Middle Mediastinal Masses
1. Lymphadenopathy
2. Aneurysms
3. Esophageal duplication
4. Bronchogenic cysts
Masses with Air Bronchograms
1. Lymphoma
2. Alveolar cell ca
3. Pseudolymphoma (Maltoma)
Cavities Containing Masses
1. Aspergillosis
2. Cavitating bronchogenic ca
3. Hydatid cyst
4. Tuberculosis
Infiltrates with Effusion
1. Staph pneumonia
2. Strep pneumonia
3. TB
4. Pulmonary infarct
“Mass”+ ipsilateral adenopathy
1. Bronchogenic ca
2. Lymphoma
3. TB
Solitary Pulmonary Nodule
1. Bronchogenic ca
2. Hamartoma
3. Histoplasmoma
4. TB granuloma
5. Bronchial adenoma
6. Solitary met
7. Round pneumonia
8. Rounded atelectasis
Pleural Effusion
1. CHF
2. Mets
3. Pancreatitis
4. Pulmonary embolism
5. Trauma
6. Empyema
7. Collagen vascular
8. Ovarian tumor (Meig’s Syndrome)
9. Chylothorax
Multiple Small Calcifications
1. Histoplasmosis
2. Silicosis
3. Chicken pox pneumonia
4. Pulmonary ossification 2° MS
5. Alveolar microlithiasis
Posterior Mediastinal Masses
1. Neurogenic tumors
2. Lymphadenopathy
3. Extramedullary hematopoiesis
Mediastinal Adenopathy
1. Bronchogenic ca
2. Lymphoma
3. TB
4. Mets
5. Sarcoid
Lung Disease & Rib Destruction
1. Bronchogenic ca, i.e. Pancoast tumor
2. Actinomycosis
3. Blastomycosis
4. Multiple myeloma
Pleural Calcification
1. Old TB empyema
2. Asbestos exposure
3. Hemothorax
“Masses” in Cardiophrenic Angle
1. Sequestration
2. Diaphragmatic hernia
3. Pericardial cyst
Unilateral Pulmonary Edema
1. Aspiration
2. Disease in other lung, e.g. COPD
3. Postural
4. Rapid expansion of PTX
Reverse Pulmonary Edema
1. Eosinophilic lung disease, e.g. Loeffler’s
2. Sarcoid
3. Pulmonary contusions
