281 results
Reversed Halo Sign - Infectious and Non-Infectious Differential Diagnosis
Definition: A focal rounded area of GGO surrounded
Reversed Halo Sign ... Non-Infectious Differential ... Diagnosis Definition ... Dermatomyositis, Lung ... #Diagnosis #pulmonary
CT Lung Signs in Pulmonary Diseases - One Page Summary of Pulmonary Signs
 - Air Crescent
CT Lung Signs in ... #ChestCT #CT #Lung ... #Signs #Pulmonary ... #Diseases #diagnosis ... #differential #
The PA-film shows a silhouette sign of the left heart border.
Even without looking at the lateral
shows a silhouette sign ... anteriorly in the left lung ... Sterptococcus pneumoniae ... Radiology #CXR #Pneumonia ... SilhouetteSign #RadiologyAssistant
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
in HIV - Differential ... Diagnosis Framework ... • CT: Halo sign ... Infections #HIV #AIDS #pulmonary ... #differential #
More common & convincing pneumonia mimics 

Aspiration pneumonitis, 
Pulmonary vasculitis, 
Acute eosinophilic pneummia,  
Cryptogeric organizing
common & convincing pneumonia ... pneumonitis, Pulmonary ... Acute eosinophilic pneummia ... #Mimics #Differential ... #Diagnosis #Pulmonary
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
• Idiopathic pulmonary ... Acute, Chronic • Pulmonary ... Diseases #ILD #diagnosis ... #differential # ... pulmonary #causes
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
and cardiogenic pulmonary ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #ChestCT #Differential ... Central #Peripheral #RadiologyAssistant
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
sliding/barcode sign ... pleura reflection) Pneumonia ... Consolidations - "Shred" sign ... #differential # ... diagnosis #signs
Multiple masses
The differential diagnostic list of multiple masses is very long.
The most important diagnoses are listed
diagnostic list ... masses is very long ... most important diagnoses ... Management #Radiology #Lung ... #RadiologyAssistant
Pathogens in Pneumonia

Here is a quick review of the pathogens causing pneumonia (useful for enumerating differentials
for enumerating differentials ... smoking. structural lung ... MAC (structural lung ... #Differential # ... Causes #Agents #Diagnosis