124 results
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
bronchiolitis (RB-ILD ... Hypersensitivity pneumonitis ... #Pulmonary #HRCT ... #ChestCT #Differential ... #Table #Distribution
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Hypersensitivity pneumonitis ... : ill defined centrilobular ... #Clinical #Radiology ... #HRCT #CTChest ... Pattern #Comparison #Table
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
Lung Diseases (ILD ... Hypersensitivity pneumonitis ... • Radiation pneumonitis ... Idiopathic Interstitial Pneumonias ... #diagnosis #differential
Diagnostic algorithm for idiopathic pulmonary fibrosis, in part adapted from the ATS/ERS consensus statement. HRCT =
HRCT = high-resolution ... computerised tomography; ILD ... usual interstitial pneumonitis
Approach to the diagnosis of chronic hypersensitivity pneumonitis. 
*Consider additional test: bronchoscopy with bronchoalveolar lavage, transbronchial
hypersensitivity pneumonitis ... hypersensitivity pneumonitis ... ; HRCT = high-resolution ... hypersensitivity #pneumonitis ... algorithm #HP #ILD
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
specific interstitial pneumonitis ... #Clinical #Radiology ... #HRCT #CTChest ... Pattern #Comparison #Table
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
#Diagnosis #Radiology ... #Pulmonary #HRCT ... #ChestCT #Differential ... #Table #Distribution
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Hypersensitivity pneumonitis ... Hypersensitivity pneumonitis ... Clinical #Diagnosis #Radiology ... NodularPattern #Differential ... #Comparison #Table
HRCT findings in UIP
Honeycombing consisting of multilayered thick-walled cysts.
Architectural distortion with traction bronchiectasis due to fibrosis.
Predominance
HRCT findings in ... Mild mediastinal ... lymphadenopathy #Clinical #Radiology ... #Interstitial #Pneumonitis ... #ILD #RadiologyAssistant
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
hypersensitivity pneumonitis ... hypersensitivity pneumonitis ... hypersensitivity pneumonitis ... The HRCT shows a ... #Clinical #Radiology