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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
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
Interstitial pneumonias
An acute reticular pattern is most frequently caused by interstitial edema due to cardiac heart
Interstitial pneumonias ... is interstitial pneumonia ... PCP Mycoplasma pneumonia ... cough and some fever ... #Clinical #Radiology
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
of organizing pneumonia ... - Clinical manifestations ... cough, dyspnea, fever ... , Pulmonary lymphoma ... #COP #BOOP #pulmonary
Good example of 'shred sign' in a patient with fever, cough and shortness of breath. 

This
a patient with fever ... on CXR/CT imaging ... #clinical #photo ... #ultrasound #lung ... #pulmonary
Based on the images alone, it is usually not possible to determine the cause of the
Lobar pneumonia ... with cough and fever ... Pulmonary hemorrhage ... Organizing pneumonia ... #Radiology #CXR
Air Bronchograms in Pneumonia on Lung Ultrasound

Pearl: When lung looks like liver, it's never a good
Bronchograms in Pneumonia ... on Lung Ultrasound ... , it's never a good ... #clinical #pocus ... #Pulmonary
Bilateral B-Lines in case of Pneumonia on Lung POCUS

Young healthy pt with fever/dyspnea. POCUS lung exam
B-Lines in case of Pneumonia ... healthy pt with fever ... /lung sliding: Pulmonary ... #Lung #POCUS #clinical ... #ultrasound
Pneumonia on Point of Care Ultrasound (POCUS)

Haitian woman fever, cough & this clip => PNA &
Pneumonia on Point ... of Care Ultrasound ... Haitian woman fever ... hole of “truth” (CT ... #Lung #Pulmonary
Decompression Sickness - The physical examination revealed diffuse violaceous skin mottling over his trunk and arms
elevated lactate level ... #Clinical #Derm ... #EM #Radiology # ... #Pneumatosis #CT ... #NEJM