21 results
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
ILD caused by inhalation ... Pneumonias: • ... pneumonia (DIP) ... pneumonia (AIP) ... #diagnosis #differential
Causes of Interstitial Lung Disease - Differential Diagnosis Algorithm
Idiopathic Interstitial Pneumonia
 • (UIP) Usual Interstitial Pneumonia
Causes of Interstitial ... UIP) Usual Interstitial ... Pneumonia - fibrosis ... Lung #Diseases #ILD ... #Causes #Differential
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
Ground-glass opacity (GGO ... HRCT as seen in fibrosis ... predominance: UIP ... Hypersensitivity pneumonitis ... #GroundGlass #Differential
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
pneumonias Cryptogenic ... Unknown • 6-7 cases ... lower lung zone, GGO ... pneumonia’s, Hypersensitivity ... BOOP #pulmonary #ILD
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
pneumonias (IIPs ... indicates unknown cause ... combinations of fibrosis ... #Diagnosis #Radiology ... #ILD #Findings
HRCT findings in UIP
Honeycombing consisting of multilayered thick-walled cysts.
Architectural distortion with traction bronchiectasis due to fibrosis.
Predominance
HRCT findings in UIP ... bronchiectasis due to fibrosis ... #CTChest #UIP # ... UsualInterstitialPneumonitis #Usual #Interstitial ... #Pneumonitis #ILD
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
CT Patterns - Differential ... Lymphangitic Carcinoma, Interstitial ... Hypersensitivity Pneumonitis ... Edema, Hemorrhage, Pneumonia ... Hypersensitivity Pneumonia
On the left a patient with GGO as dominant pattern.
In addition there is traction bronchiectasis indicating
a patient with GGO ... This case is one ... pneumonia (NSIP ... interstitial pneumonia ... #Clinical #Radiology
Radiographic appearances of pulmonary diseases in HIV/AIDS Patients
 • Diffuse Interstitial Infiltrates: Pneumocystis jirovecii, M.tuberculosis, Histoplasma
Patients • Diffuse Interstitial ... Influenza, Lymphocytic interstitial ... pneumonitis, Abacavir ... complex • Nodular/Masses ... pulmonary #diseases #differential
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
chronic HP (right) Differential ... Hypersensitivity Pneumonitis ... Subacute stage: - RB-ILD ... In chronic HP fibrotic ... Clinical #Diagnosis #Radiology