14 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Lung cysts (LAM, LIP ... can be readily ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
Ground-glass opacity (GGO ... in ground glass pattern ... predominance: UIP ... , NSIP, DIP. - Centrilobular ... #Pulmonary #CTChest
On the left a patient with GGO as dominant pattern.
In addition there is traction bronchiectasis indicating
a patient with GGO ... As in UIP (usual ... #Clinical #Radiology ... #CTChest #NSIP ... #GroundGlass #GGO
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
interstitial pneumonitis (NSIP ... result of massive fibrosis ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
woman of child-bearing ... Centrilobular emphysema ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Centrilobular emphysema ... woman of child-bearing ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Centrilobular emphysema ... central dot. - LIP ... #Clinical #Diagnosis ... #Radiology #CTChest ... #Differential #Comparison
The predominant finding is ground glass opacity (GGO).
There is very subtle traction bronchiectasis, indicating that the
glass opacity (GGO ... the result of fibrosis ... distribution of UIP ... #Clinical #Radiology ... #CTChest #NSIP
The predominant finding is ground glass opacity (GGO).
There is very subtle traction bronchiectasis, indicating that the
glass opacity (GGO ... the result of fibrosis ... distribution of UIP ... #Clinical #Radiology ... #CTChest #NSIP
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
centrilobular emphysema ... In chronic HP fibrotic ... #Clinical #Diagnosis ... #Radiology #CTChest ... #UIP #Comparison