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The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
result in decreased lung ... - Lung cysts (LAM ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... #SignetRing #RadiologyAssistant
Radiographic Features of Pulmonary Diseases
 - Pneumonia
 - Atelectasis
 - Emphysema
 - Pneumothorax
 - Effusion
 -
Atelectasis - Emphysema ... Metastases - Interstitial ... Reticular - Emphysema ... #Diseases #Radiology ... #Patterns #Lung
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... (centrilobular emphysema ... edema #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Upper #Lower #RadiologyAssistant
The CXR demonstrates a reticular interstitial pattern with a preference at the lung bases.
The HRCT demonstrates
preference at the lung ... HRCT demonstrates honeycombing ... #Clinical #Radiology ... #Pattern #Honeycombing ... TractionBronchiectasis #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
lung disease comes ... histiocytosis or honeycombing ... #Diagnosis #Radiology ... #Pulmonary #CXR ... #Differential #RadiologyAssistant
Notice the honeycombing and the preference of the subpleural and basal lung areas. #Clinical #Radiology #CTChest
Notice the honeycombing ... subpleural and basal lung ... #Clinical #Radiology ... UsualInterstitialPneumonitis #Usual #Interstitial ... Pneumonitis #ILD #RadiologyAssistant
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
pneumatocele, emphysema ... , bulla, honeycombing ... with a thin wall Emphysema ... #Pulmonary #Diagnosis ... #Radiology
Notice the honeycombing and the preference of the subpleural and basal lung areas. #Clinical #Radiology #CTChest
Notice the honeycombing ... subpleural and basal lung ... #Clinical #Radiology ... UsualInterstitialPneumonitis #Usual #Interstitial ... LowerLungPredominance #ILD #RadiologyAssistant
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
Lymphangitic Carcinoma, Interstitial ... Silicosis • Honeycombing ... Attenuation: • Emphysema ... : Idiopathic Pulmonary ... #radiology
Honeycombing is defined by the presence of small cystic spaces with irregularly thickened walls composed of
and subpleural lung ... from paraseptal emphysema ... #Diagnosis #Radiology ... #Pulmonary #Honeycombing ... #Differential #RadiologyAssistant