14 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
The fourth pattern ... low attenuation pattern ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Low Attenuation pattern ... low attenuation areas ... #HRCT #CTChest ... LowAttenuation #Cystic #Pattern ... #Comparison #Table
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Low Attenuation pattern ... Centrilobular emphysema ... low attenuation areas ... #HRCT #CTChest ... LowAttenuation #Cystic #Pattern
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
High Attenuation pattern ... with peripheral areas ... #HRCT #CTChest ... HighAttenuation #Pattern ... #Comparison #Table
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 ... #CXR #Lung #Patterns
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
terms to describe areas ... pneumatocele, emphysema ... since in many cases ... we describe a chest ... is to describe areas
Palpable Skin Crepitus on Physical Exam

Notice these air bubbles under the skin. An 86-year-old woman with
neck (shown in video ... and spaces can cause ... travels from these areas ... in subcutaneous areas ... under the skin as long
â–º
On the left a patient with ground glass pattern in a mosaic distribution.
The clue here is
with ground glass pattern ... (arrow) in the areas ... hyperperfused lung ... #Clinical #Radiology ... #CTChest #GGO #
On the left a typical case of panlobular emphysema.
There is uniform destruction of the underlying architecture
left a typical case ... to widespread areas ... in the affected lung ... #Clinical #Radiology ... #CTChest #Panlobular
Chronic hypersensitivity pneumonitis (2)
The case on the left shows an inspiratory and expiratory scan: the mosaic
scan: the mosaic pattern ... with areas of ground-glass ... attenuation and areas ... mid and lower lung ... with a mozaic pattern