22 results
Radiographic Features of Pulmonary Diseases
 - Pneumonia
 - Atelectasis
 - Emphysema
 - Pneumothorax
 - Effusion
 -
Pneumothorax - Effusion ... Glass Opacity - Chronic ... Radiology #Patterns #Lung ... #CXR #XRay #ChestCT ... #Differential #
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
of Hypoxemia- Differential ... Limitation • Interstitial ... lung disease ... Abnormalities • Chest ... Hypoxemia #Hypoxia #Differential
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Causes of Chronic ... Dyspnea - Differential ... Pericardial • Effusion ... Thickening/Masses Chest ... Interstitium
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... lung disease comes ... On a Chest X-Ray ... Diagnosis #Radiology #Pulmonary ... #CXR #Interstitial
Causes of Dyspnea - Differential Diagnosis Algorithm
Cardiac:
 • Dysrhythmia
 • Ischemia
 • Cardiomyopathy
 • Valvular disease
Causes of Dyspnea - Differential ... Bronchitis • Chronic ... • Cancer • Interstitial ... lung disease Vasculature ... Pleura: • Pleural effusion
Radiographic appearances of pulmonary diseases in HIV/AIDS Patients
 • Diffuse Interstitial Infiltrates: Pneumocystis jirovecii, M.tuberculosis, Histoplasma
Patients • Diffuse Interstitial ... Influenza, Lymphocytic interstitial ... Actinomyces spp., NHL; Lung ... #diseases #differential ... #diagnosis #chestCT
Rheumatoid arthritis (RA): Extra-articular manifestations
Skin: 
 • Inflammation of skin (esp. over areas of stress) forms
pain, pleural effusion ... on CXR • RA inflammation ... tends to cause interstitial ... lung disease/pulmonary ... pathophysiology #signs
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Weakness, Loss of Chest ... Elasticity (flail chest ... Disease, Interstitial ... Lung Disease ... Hypoxia #hypoxemia #differential
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
- Imaging: • CXR ... Rare: pleural effusions ... organizing pneumonia, Chronic ... eosinophilia pneumonia, Pulmonary ... Pneumonia #COP #BOOP #pulmonary
Based on the images alone, it is usually not possible to determine the cause of the
like acute or chronic ... between these chest ... this is nodular interstitial ... lung disease, that ... Diagnosis #Radiology #CXR