15 results
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... pattern The algorithm ... Radiology #Pulmonary #HRCT ... #CTChest #NodularPattern ... #Nodular #Pattern
The distribution of nodules shown on HRCT is the most important factor in making an accurate
shown on HRCT is ... pattern. ... Nodules are randomly ... #NodularPattern ... #Nodular #Pattern
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... Miliary TB: random ... nodules 3. ... Clinical #Radiology #HRCT ... #Pattern #Comparison
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
diseases with a nodular ... pattern. 1. ... Miliary TB: random ... nodules of the ... #Pattern #NodularPattern
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis on HRCT ... disease comes from HRCT ... On HRCT there are ... reticular, nodular ... , high and low attenuation
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
High Attenuation ... pattern (2) 1. ... organizing pneumonia (COP ... COP. ... Clinical #Radiology #HRCT
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
Patterns - Differential ... Low Attenuation Nodular ... : • Random: Metastases ... Hypersensitivity Pneumonia, COP ... Sarcoidosis, NSIP, COP
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Organizing Pneumonia (COP ... consolidation and GG pattern ... irregular lines, nodular ... , cavities • HRCT ... Organizing #Pneumonia #COP
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
the dominant HR-pattern ... : reticular nodular ... high attenuation ... perilymphatic or random ... Interpretation #Algorithm
Approach to the diagnosis of chronic hypersensitivity pneumonitis. 
*Consider additional test: bronchoscopy with bronchoalveolar lavage, transbronchial
cHP = chronic hypersensitivity ... pneumonitis; HRCT ...  = high-resolution ... pulmonary #diagnosis #algorithm