50 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
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result in decreased lung ... - Emphysema - Lung ... on the basis of HRCT ... Differential #Diagram #Comparison ... Emphysema #SignetRing #RadiologyAssistant
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
adenopathy and pleural effusion ... Clinical #Radiology #HRCT ... Cystic #Pattern #Comparison ... #Table #RadiologyAssistant
Pneumonia on Chest Xray and POCUS

Extensive pneumonia in lower left lobe (red arrow). 
POCUS: Dynamic air
Pneumonia #Dynamic #AirBronchogram ... #POCUS #CXR #Comparison ... #Clinical #Lung
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Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... Radiology #Pulmonary #HRCT ... #Upper #Lower #RadiologyAssistant
Air Bronchograms on Ultrasound

Opacification of alveolar spaces surrounding air-filled bronchioles; enables visualization of well-defined tissue/air interface;
including large effusions ... UAlberta_CCUS #AirBronchograms ... POCUS #Clinical #Lung ... #Ultrasound #comparison
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Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Clinical #Radiology #HRCT ... Nodular #Pattern #Comparison ... #Table #RadiologyAssistant
#Clinical #Radiology #CXR #Opacification #Air #Bronchogram #AirBronchogram #PleuritisCarcinomatosa #Carcinomatosa #Effusion #RadiologyAssistant
#Bronchogram #AirBronchogram ... Carcinomatosa #Effusion ... #RadiologyAssistant
More than 100 entities manifest as diffuse lung disease.
Fortunately only about 10 of these account for
manifest as diffuse lung ... of all diffuse lung ... also uncommon HRCT-presentations ... SHITFACED #Mnemonic #HRCT ... #RadiologyAssistant
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
Clinical #Radiology #HRCT ... Nodular #Pattern #Comparison ... #Table #RadiologyAssistant
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
Clinical #Radiology #HRCT ... HighAttenuation #Pattern #Comparison ... #Table #RadiologyAssistant