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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 ... or air-filled lesions ... - Emphysema - Lung ... Diagnosis #Radiology #Pulmonary ... Emphysema #SignetRing #RadiologyAssistant
Cavitary Lung Disease - Differential Diagnosis and Workup Algorithm
Acute / Subacute:
 • Acute Infections: Lung abscess,
Cavitary Lung Disease ... Diagnosis and Workup Algorithm ... Acute Infections: Lung ... Disease #Diagnosis #Algorithm ... #lesion #pulmonary
Size
A solitary pulmonary nodule (SPN) is defined as a single intraparenchymal lesion less than 3 cm
Size A solitary pulmonary ... A lesion greater ... high risk for lung ... EBM #Radiology #Pulmonary ... MalignancyRate #Rate #RadiologyAssistant
Solitary Pulmonary Nodule
Click here for more detailed information about Solitary Pulmonary Nodule
A solitary pulmonary nodule or
Solitary Pulmonary ... about Solitary Pulmonary ... surrounded by lung ... Lesions smaller ... #Differential #RadiologyAssistant
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
demonstrates more lesions ... feeding vessel sign ... feeding vessel sign ... densities iin the left lung ... SepticEmboli #Cavity #RadiologyAssistant
Lung Nodule - Differential Diagnosis Algorithm
Nodule on > 2 Years Without a Change in Size:
 •
Lung Nodule - Differential ... Diagnosis Algorithm ... Metastases ("cannonball lesions ... Differential #Diagnosis #Algorithm ... #Causes #Pulmonary
Hilar and mediastinal lymphadenopathy
In sarcoidosis the common pattern is right paratracheal and bilateral hilar adenopathy ('1-2-3-sign').
In
adenopathy ('1-2-3-sign ... In lung carcinoma ... Diagnosis #Radiology #Pulmonary ... #Differential #RadiologyAssistant
The BLUE-protocol decision tree - performed on dyspneic patients who will be admitted to the ICU

The
BLUE-protocol combines signs ... with lung-rockets ... A-profile at one lung ... BLUE #protocol #Algorithm ... #Pulmonary #Ultrasound
The BLUE-protocol decision tree - performed on dyspneic patients who will be admitted to the ICU

The
BLUE-protocol combines signs ... with lung-rockets ... indicates anterior lung ... A-profile at one lung ... dyspnea-criticalcare-pulmonary-algorithm-pocus
The BLUE-protocol decision tree - performed on dyspneic patients who will be admitted to the ICU

The
BLUE-protocol combines signs ... with lung-rockets ... A-profile at one lung ... BLUE #protocol #Algorithm ... #Pulmonary #Ultrasound