31 results
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
Hypersensitivity pneumonitis ... • Radiation pneumonitis ... Idiopathic Interstitial Pneumonias ... pneumonia: Acute, Chronic ... #diagnosis #differential
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... bronchiolitis (RB-ILD ... Hypersensitivity pneumonitis ... HRCT #ChestCT #Differential ... #Table #Distribution
Lung Nodules - Differential Diagnosis by Distribution
 • Centrilobular: Hypersensitivity Pneumonitis, RB-ILD, Pneumoconiosis, Infectious Bronchiolitis, Vasculitis,
Lung Nodules - Differential ... Hypersensitivity Pneumonitis ... , RB-ILD, Pneumoconiosis ... , Infectious Bronchiolitis ... BrighamChiefs #Lung
Cough - Diagnostic Schema

Infectious: URTI, LRTI, Bacterial, Viral
Irritant/Exposure: Allergic, Post-infectious, Pneumonitis, ACEi, PTX, Foreign Body
Airway Disease:
, Pneumonitis, ACEi ... Autoimmune Vasculitis, ILD ... Malignancy: Lung ... Schema #Acute #Chronic ... #Differential #
Causes of Cough and Hemoptysis
Acute Inflammation 
 - Laryngitis 
 - Tracheobronchitis 
 - Mycoplasma and
- Bacterial Pneumonias ... Tuberculosis - Lung ... Cancer of the Lung ... Cough #Hemoptysis #Differential ... #Causes #Table
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Hypersensitivity pneumonitis ... Hypersensitivity pneumonitis ... NodularPattern #Differential ... #Comparison #Table ... #RadiologyAssistant
Causes of Interstitial Lung Disease - Differential Diagnosis Algorithm
Idiopathic Interstitial Pneumonia
 • (UIP) Usual Interstitial Pneumonia
Disease - Differential ... intersitial space Infection ... Beomycin • Acute or Chronic ... Radiation Pneumonitis ... #Diseases #ILD
Batwing
A bilateral perihilar distribution of consolidation is also called a Batwing distribution.
The sparing of the periphery
it is seen in pneumonias ... frequently seen in chronic ... lung disease. ... #CXR #Batwing #Differential ... #RadiologyAssistant
It is very important to differentiate between acute consolidation and chronic consolidation, because it will limit
very important to differentiate ... - Lung neoplasms ... - Chronic post-infection ... #Differential # ... RadiologyAssistant
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
HP (right) Differential ... Hypersensitivity Pneumonitis ... Subacute stage: - RB-ILD ... throughout the whole lung ... #RadiologyAssistant