22 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
result in decreased lung ... - Lung cysts (LAM ... , LIP, Langerhans ... Radiology #Pulmonary #CTChest ... #SignetRing #RadiologyAssistant
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
effusion; sometimes pneumothorax ... Centrilobular emphysema ... low attenuation areas ... Radiology #HRCT #CTChest ... Comparison #Table #RadiologyAssistant
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 ... throughout the whole lung ... Diagnosis #Radiology #CTChest ... #Mimic #ILD #RadiologyAssistant
Paraseptal emphysema is localized near fissures and pleura and is frequently associated with bullae formation (area
Paraseptal emphysema ... to spontaneous pneumothorax ... compression of adjacent lung ... Clinical #Radiology #CTChest ... ParaseptalEmphysema #RadiologyAssistant
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
HRCT as seen in fibrosis ... or interstitial lung ... predominance: UIP ... Radiology #Pulmonary #CTChest ... #Differential #RadiologyAssistant
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
responses of the lung ... combinations of fibrosis ... findings of NSIP, UIP ... Radiology #Pulmonary #CTChest ... ILD #Findings #RadiologyAssistant
Consolidation is synonymous with airspace disease.
When you think of the causes of consolidation, think of 'what
Even fibrosis as ... in UIP, NSIP and ... long standing sarcoidosis ... Radiology #Pulmonary #CTChest ... #Differential #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
can heal and end up ... the surrounding lung ... with end-stage fibrosis ... Diagnosis #Radiology #CTChest ... #Comparison #RadiologyAssistant
On the left a chest film of a patient with UIP due to IPF.
The findings on
a patient with UIP ... volume loss and fibrotic ... changes in the basal lung ... film with long ... Reticular #ILD #RadiologyAssistant
Emphysema, when it is severe, can mimick Langerhans cell histiosytosis.
When it extends beyond the centrilobular area
Emphysema, when ... LCH, but also areas ... bronchiolitis and even fibrosis ... Clinical #Radiology #CTChest ... #Emphysema #RadiologyAssistant