15 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
The fourth pattern ... Lung cysts (LAM, LIP ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Centrilobular emphysema ... low attenuation areas ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Centrilobular emphysema ... low attenuation areas ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
with peripheral areas ... presenting as areas ... with peripheral areas ... #HRCT #CTChest ... #Comparison #Table
Palpable Skin Crepitus on Physical Exam

Notice these air bubbles under the skin. An 86-year-old woman with
An 86-year-old woman ... sudden-onset shortness of breath ... neck (shown in video ... travels from these areas ... in subcutaneous areas
â–º
On the left a patient with DIP.
The HRCT shows diffuse areas of ground-glass density in the
a patient with DIP ... shows diffuse areas ... and some mosaic pattern ... #CTChest #DIP # ... DesquamativeInterstitialPneumonia #ILD
Notice the honeycombing and the preference of the subpleural and basal lung areas. #Clinical #Radiology #CTChest
and basal lung areas ... #Clinical #Radiology ... #CTChest #UIP # ... #Pneumonitis #ILD
Notice the honeycombing and the preference of the subpleural and basal lung areas. #Clinical #Radiology #CTChest
and basal lung areas ... #Clinical #Radiology ... #CTChest #UIP # ... LowerLungPredominance #ILD
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
Subacute stage: - RB-ILD ... centrilobular emphysema ... #CTChest #UIP # ... Comparison #Chronic ... Fibrosis #Mimic #ILD
Lung abnormalities mostly present as areas of increased density, which can be divided into the following
mostly present as areas ... the following patterns ... Less frequently areas ... are seen as in emphysema ... published soon: Chest