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The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
The fourth pattern ... - Emphysema - Lung ... #Diagnosis #Radiology ... #Differential #Diagram ... Emphysema #SignetRing #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... in interstitial lung ... is interstitial lung ... seen and in many cases ... #Differential #RadiologyAssistant
Multiple masses
The differential diagnostic list of multiple masses is very long.
The most important diagnoses are listed
The differential diagnostic ... is very long. ... most important diagnoses ... Management #Radiology #Lung ... #Differential #RadiologyAssistant
Pathogens in Pneumonia

Here is a quick review of the pathogens causing pneumonia (useful for enumerating differentials
your grand rounds/cases ... smoking. structural lung ... MAC (structural lung ... #Microbiology #Causes ... #Agents #Diagnosis
Whenever you see an area of increased density within the lung, it must be the result
of these four patterns ... cells (including tumor ... #Diagnosis #Radiology ... Consolidation #Patterns ... #RadiologyAssistant
Tree-in-bud
In centrilobular nodules the recognition of 'tree-in-bud' is of value for narrowing the differential diagnosis.
Tree-in-bud describes
the differential diagnosis ... identified in the lung ... #Diagnosis #Pathophys ... CTChest #TreeInBud #Diagram ... #RadiologyAssistant
The distribution of nodules shown on HRCT is the most important factor in making an accurate
in the nodular pattern ... In most cases small ... structures of the lung ... Perilymphatic #Comparison #Diagram ... #RadiologyAssistant
Consolidation is synonymous with airspace disease.
When you think of the causes of consolidation, think of 'what
you think of the causes ... edema, blood or tumor ... UIP, NSIP and long ... #Diagnosis #Radiology ... #Differential #RadiologyAssistant
Here are the most common examples of these four patterns on a chest x-ray (click image
of these four patterns ... Nodule - Multiple Masses ... Atelectasis #Diagnosis ... Consolidation #Patterns ... #RadiologyAssistant
Causes of Hemoptysis - BATTLE CAMP Mnemonic:

Bronchitis 
Bronchiectasis 
Aspergilloma 
Tumor 
Tuberculosis 
Lung abscess 
Emboli (pulmonary) 
Coagulopathy
Causes of Hemoptysis ... Aspergilloma Tumor ... Tuberculosis Lung ... BATTLECAMP #Mnemonic #Causes ... #Differential #Diagnosis