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Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
there are four patterns ... the most common pattern ... The cystic pattern ... histiocytosis or honeycombing ... pattern on a CXR
The CXR demonstrates a reticular interstitial pattern with a preference at the lung bases.
The HRCT demonstrates
interstitial pattern ... HRCT demonstrates honeycombing ... #Clinical #Radiology ... #Interstitial #Pattern ... #Honeycombing #
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
is a histologic pattern ... pattern particularly ... pattern at the ... This pattern was ... #Clinical #Radiology
Honeycombing represents the second reticular pattern recognizable on HRCT.
Because of the cystic appearance, honeycombing is also
Honeycombing represents ... the second reticular ... pattern recognizable ... low attenuation pattern ... #Clinical #Radiology
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT Patterns ... Diagnosis Framework Reticular ... Silicosis • Honeycombing ... Lymphangioleiomyomatosis • Honeycombing ... HighRes #Chest #CT #Patterns
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Low Attenuation pattern ... Honeycombing 4. ... #Clinical #Radiology ... LowAttenuation #Cystic #Pattern
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
High Attenuation pattern ... bronchiectasis, no honeycombing ... #Clinical #Radiology ... HighAttenuation #Pattern
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Low Attenuation pattern ... Honeycombing. 4. ... #Clinical #Radiology ... LowAttenuation #Cystic #Pattern
Common Clinical Patterns of Weakness

#Weakness #Diagnosis #Differential #Algorithm #Patterns
Common Clinical ... Patterns of Weakness ... #Differential #Algorithm ... #Patterns
Here are the most common examples of these four patterns on a chest x-ray (click image
of these four patterns ... Interstitial - Reticular ... Atelectasis #Diagnosis #Clinical ... Consolidation #Patterns