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Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
loss, lethargy, fever ... • CT: Halo sign ... • Fever, weight ... be normal • Fever ... Infections #HIV #AIDS #pulmonary
Interstitial pneumonias
An acute reticular pattern is most frequently caused by interstitial edema due to cardiac heart
Interstitial pneumonias ... cough and some fever ... #Clinical #Radiology ... #CXR #Acute #Interstitial ... #RadiologyAssistant
Lobar pneumonia
On the chest x-ray there is an ill-defined area of increased density in the right
On the chest x-ray ... there is an ill-defined ... #Clinical #Radiology ... #CXR #AirBronchogram ... #RadiologyAssistant
Pneumonia on Chest Xray and POCUS

Extensive pneumonia in lower left lobe (red arrow). 
POCUS: Dynamic air
Pneumonia on Chest ... Xray and POCUS ... #CXR #Comparison ... #Clinical #Lung ... #Pulmonary #Clinical
Venn Diagram - Does this patient have pneumonia?
Diagnosis is generally based on three lines of evidence:
this patient have pneumonia ... infiltrate (e.g., CXR ... , CT, ultrasound ... Inflammation (e.g., fever ... #Pneumonia #Venn
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
- Clinical manifestations ... cough, dyspnea, fever ... - Imaging: • CXR ... , Pulmonary lymphoma ... #ILD #diagnosis
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
CT demonstrates ... in the proper clinical ... #Clinical #Radiology ... #CXR #CTChest # ... SepticEmboli #Cavity #RadiologyAssistant
Air Bronchograms in Pneumonia on Lung Ultrasound

Pearl: When lung looks like liver, it's never a good
Bronchograms in Pneumonia ... , it's never a good ... CXR in video for ... #clinical #pocus ... #Pulmonary
Based on the images alone, it is usually not possible to determine the cause of the
between these chest ... with cough and fever ... nodular interstitial lung ... #Radiology #CXR ... Consolidation #Causes #RadiologyAssistant
Good example of 'shred sign' in a patient with fever, cough and shortness of breath. 

This
a patient with fever ... This POCUS finding ... on CXR/CT imaging ... #clinical #photo ... #pulmonary