11 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 ... lung disease (RB-ILD ... Churg Strauss syndrome ... #ILD #diagnosis
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 ... Hypoventilation Syndrome
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
pneumonias (IIPs ... indicates unknown cause ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... #ILD #Findings
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
- Differential Diagnosis ... : • 3 syndromes ... of a "flu-like syndrome ... fever, rales, interstitial ... #differential #diagnosis
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
- Differential Diagnosis ... : Interstitial lung ... • Causes: Pneumonia ... hepatopulmonary syndrome ... #Differential #Diagnosis
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation Syndrome ... Atelectasis, ARDS, Pneumonia ... Disease, Interstitial ... Lung Disease ... #diagnosis
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Causes of Chronic ... Acute Coronary Syndrome ... Pulmonary Alveoli • Pneumonia ... Neoplasm Pulmonary Interstitium ... • ILD • CHF
Amiodarone Induced Lung Toxicity Summary

Who?
• 5% of patients
• Dose ≥ 400 mg per day

How?  Possible
Amiodarone Induced Lung ... Direct cytotoxic lung ... respiratory distress syndrome ... Exclude other causes ... Exclusion of other ILDs
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
• Chronic lung ... Granulomatous lymphocytic interstitial ... lung disease (GLILD ... community-acquired infections: Pneumonia ... DDX - Other causes
Acute interstitial pneumonia (AIP, earlier named Hamman Rich Pneumonitis) is a rare idiopathic lung disease characterized
Acute interstitial ... pneumonia (AIP, ... rare idiopathic lung ... respiratory distress syndrome ... suggestive of the diagnosis