39 results
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
Interstitial Lung ... ILD caused by inhalation ... fibrosis (IPF), ... lung disease (RB-ILD ... #causes
Causes of Interstitial Lung Disease - Differential Diagnosis Algorithm
Idiopathic Interstitial Pneumonia
 • (UIP) Usual Interstitial Pneumonia
Causes of Interstitial ... Pneumonia - fibrosis ... Lymphangioleiomyomatosis (LAM), • Pulmonary ... leaking out of pulmonary ... #ILD #Causes #Differential
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
indicates unknown cause ... combinations of fibrosis ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... #ILD #Findings
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
• Pleuritic chest ... • CT: Halo sign ... Lymphadenopathy, Chest ... breath, Fatigue, Chest ... : • Chest pain
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
19 Patterns of Lung ... Findings on Chest ... Organizing Pneumonia ... #Pulmonary #ChestCT ... #radiology #CTChest
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... Limitation • Interstitial ... lung disease ... Malformation • Severe Pneumonia ... Abnormalities • Chest
Lobar pneumonia
On the chest x-ray there is an ill-defined area of increased density in the right
On the chest x-ray ... there is an ill-defined ... weight loss or long ... caused by Streptcoccus ... #Clinical #Radiology
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Causes of Chronic ... Chest Wall Abnormalities ... Alveoli • Pneumonia ... Interstitium ... • ILD • CHF
Here are the most common examples of these four patterns on a chest x-ray (click image
patterns on a chest ... consolidation - Multifocal ill-defined ... mass - Solitary Pulmonary ... Nodule - Multiple Masses ... Diagnosis #Clinical #Radiology
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Weakness, Loss of Chest ... Elasticity (flail chest ... Atelectasis, ARDS, Pneumonia ... Fibrosis, Interstitial ... Lung Disease