15 results
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... Hypersensitivity pneumonitis: ill ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
Here are the most common examples of these four patterns on a chest x-ray (click image
consolidation - Multifocal ill-defined ... interstitial opacities ... Nodule or mass ... Masses Atelectasis #Diagnosis ... #Clinical #Radiology
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... on HRCT Most of ... patterns: reticular, nodular ... low attenuation (table ... #Diagnosis #Radiology
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... centrilobular nodules ... bronchovascular interstitium ... #Diagnosis #Radiology ... #Pulmonary #HRCT
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
bronchiolitis (RB-ILD ... Pulmonary edema #Diagnosis ... #Radiology #Pulmonary ... #HRCT #ChestCT ... #Differential #Table
The distribution of nodules shown on HRCT is the most important factor in making an accurate
shown on HRCT is ... making an accurate diagnosis ... peribronchovascular interstitium ... #Diagnosis #Radiology ... #Pulmonary #HRCT
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Hypersensitivity pneumonitis: ill ... bronchiolitis: ill ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... Differential #Comparison #Table
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
The idiopathic interstitial ... listed in the table ... morphologic findings on HRCT ... #Diagnosis #Radiology ... IdiopathicInterstitialPneumonia #ILD
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
irregular lines, nodular ... , cavities • HRCT ... Organizing Pneumonia - Diagnosis ... BOOP #pulmonary #ILD ... #diagnosis #management
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
limited differential diagnosis ... (Table). ... Nodular or irregular ... #Diagnosis #Radiology ... #Pulmonary #HRCT