2739 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
These include: - Emphysema ... #Diagnosis #Radiology ... TractionBronchiectasis #Cysts #Emphysema ... #SignetRing #RadiologyAssistant
Centrilobular emphysema due to smoking. The periphery of the lung is spared (blue arrows). Centrilobular artery
Centrilobular emphysema ... #Clinical #Radiology ... Centrilobular #Emphysema ... CentrilobularEmphysema #RadiologyAssistant
Paraseptal emphysema is localized near fissures and pleura and is frequently associated with bullae formation (area
Paraseptal emphysema ... formation (area of emphysema ... #Clinical #Radiology ... CTChest #Paraseptal #Emphysema ... ParaseptalEmphysema #RadiologyAssistant
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
(centrilobular emphysema ... edema #Diagnosis #Radiology ... #Upper #Lower #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Centrilobular emphysema ... Clinical #Diagnosis #Radiology ... Comparison #Table #RadiologyAssistant
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Centrilobular emphysema ... #Clinical #Radiology ... Comparison #Table #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Centrilobular emphysema ... #Clinical #Radiology ... Comparison #Table #RadiologyAssistant
On the left a patient with RB-ILD.
The dominant feature is ground glass opacification and there are
centrilobular emphysema ... the precursor of emphysema ... #Clinical #Radiology ... RespiratoryBronchiolitis #ILD #RadiologyAssistant
Emphysema, when it is severe, can mimick Langerhans cell histiosytosis.
When it extends beyond the centrilobular area
Emphysema, when ... also areas of emphysema ... #Clinical #Radiology ... #CTChest #Emphysema ... #RadiologyAssistant
Unilateral pleural calcifications are usually due to:
- infection (TB)
- empyema
- hemorrhagic #Clinical #Radiology #CXR #Pleural #Plaques
infection (TB) - empyema ... hemorrhagic #Clinical #Radiology ... Calcifications #RadiologyAssistant