11 results
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
(LAM): uniform cysts ... Centrilobular emphysema ... #Clinical #Radiology ... #HRCT #CTChest ... #Pattern #Comparison
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Centrilobular emphysema ... (LAM): regular cysts ... #Clinical #Radiology ... #HRCT #CTChest ... #Pattern #Comparison
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
These include: - Emphysema ... - Lung cysts (LAM ... on the basis of HRCT ... #Diagnosis #Radiology ... Differential #Diagram #Comparison
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
Fibrosis and parenchymal ... The HRCT shows a ... existing irreversible fibrosis ... #Clinical #Radiology ... #CXR #CTChest #
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
specific interstitial pneumonitis ... result of massive fibrosis ... #Clinical #Radiology ... #HRCT #CTChest ... HighAttenuation #Pattern #Comparison
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
Hypersensitivity Pneumonitis ... centrilobular emphysema ... show very similar HRCT ... #Clinical #Diagnosis ... #UIP #Comparison
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
emphysematous bullae ... with end-stage fibrosis ... #Clinical #Diagnosis ... #Radiology #CTChest ... Emphysema #Comparison
HRCT findings in UIP
Honeycombing consisting of multilayered thick-walled cysts.
Architectural distortion with traction bronchiectasis due to fibrosis.
Predominance
HRCT findings in ... multilayered thick-walled cysts ... bronchiectasis due to fibrosis ... lymphadenopathy #Clinical ... #Radiology #CTChest
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
pattern of pulmonary fibrosis ... A HRCT is needed ... to confirm the diagnosis ... HRCT demonstrated ... #Clinical #Radiology
Acute interstitial pneumonia (AIP, earlier named Hamman Rich Pneumonitis) is a rare idiopathic lung disease characterized
named Hamman Rich Pneumonitis ... with subsequent fibrosis ... aswell as the HRCT ... The HRCT characteristics ... #Clinical #Radiology