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The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
result in decreased lung ... These include: - Emphysema ... - Lung cysts (LAM ... #Diagnosis #Radiology ... #SignetRing #RadiologyAssistant
Multiple masses
The differential diagnostic list of multiple masses is very long.
The most important diagnoses are listed
The differential diagnostic ... most important diagnoses ... #Management #Radiology ... #Lung #Multiple ... #Differential #RadiologyAssistant
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... (centrilobular emphysema ... Pulmonary edema #Diagnosis ... #Radiology #Pulmonary ... #Upper #Lower #RadiologyAssistant
Consolidation is synonymous with airspace disease.
When you think of the causes of consolidation, think of 'what
you think of the causes ... blood or tumor cells ... UIP, NSIP and long ... #Diagnosis #Radiology ... #Differential #RadiologyAssistant
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
pneumatocele, emphysema ... since in many cases ... with a thin wall Emphysema ... #Pulmonary #Diagnosis ... #Radiology
Paraseptal emphysema is localized near fissures and pleura and is frequently associated with bullae formation (area
Paraseptal emphysema ... bullae occasionally cause ... compression of adjacent lung ... #Clinical #Radiology ... ParaseptalEmphysema #RadiologyAssistant
Whenever you see an area of increased density within the lung, it must be the result
density within the lung ... tissue of the lung ... a part of the lung ... #Diagnosis #Radiology ... Consolidation #Patterns #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
the differential diagnosis ... the surrounding lung ... #Clinical #Diagnosis ... #Radiology #CTChest ... #Comparison #RadiologyAssistant
On the left a typical case of panlobular emphysema.
There is uniform destruction of the underlying architecture
left a typical case ... in the affected lung ... appearance of extensive lung ... #Clinical #Radiology ... PanlobularEmphysema #RadiologyAssistant
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
responses of the lung ... indicates unknown cause ... involvement of the lung ... #Diagnosis #Radiology ... ILD #Findings #RadiologyAssistant