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The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
histiocytosis) - Bronchiectasis ... on the basis of HRCT ... #Pulmonary #CTChest ... LowAttenuation #Differential ... Emphysema #SignetRing #RadiologyAssistant
Pulmonary bulla seen on chest #CT. #radiology #radiologyassistant #diagnosis #ctchest #em
Pulmonary bulla ... seen on chest #CT ... #radiology #radiologyassistant ... #diagnosis #ctchest ... #em
Bronchiectasis is defined as localized bronchial dilatation.
The diagnosis of bronchiectasis is usually based on a combination
chronic bronchitis, COPD ... #Diagnosis #Radiology ... #Pulmonary #Bronchiectasis ... #Differential # ... RadiologyAssistant
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Patterns - Differential ... Sarcoidosis • Bronchiectasis ... #CT #Patterns # ... #pulmonary #radiology
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
obstruction • COPD ... Nasal polyps and signs ... Diagnosis: • HRCT ... CT) • Broncho-arterial ... #pulmonary #differential
On the left two cases with chronic consolidation. 
There are patchy non-segmental consolidations in a subpleural
pneumonia the HRCT ... will be other signs ... honeycombing or traction bronchiectasis ... #CTChest #COP # ... OrganizingPneumonia #RadiologyAssistant
On the left a smoker with RB-ILD with subtle HRCT-findings.
The dominant pattern is ground glass opacification.
Additional
these non-specific CT ... there is a broad differential ... PCP would be on top ... #CTChest #RBILD ... RespiratoryBronchiolitis #ILD #RadiologyAssistant
he CT shows a lesion that originates in the lung.
Many would have a lungcancer on the
he CT shows a lesion ... lungcancer on the top ... of their differential ... #CTChest #RoundedAtelectasis ... #RadiologyAssistant