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Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
loss, lethargy, fever ... • Fever, weight ... lymphadenopathy, • Abdominal ... factor • May cause ... Infections #HIV #AIDS #pulmonary
Fever in Returning Travelers from Tropical Regions - Frequent Differential Diagnoses
Medical History:
 • Skin exposure to
amebic abscess of liver ... or elevation of liver ... Cough, dyspnea - Pneumonia ... infection • Abdominal ... fluke, amebic liver
Air Bronchograms in Pneumonia on Lung Ultrasound

Pearl: When lung looks like liver, it's never a good
on Lung Ultrasound ... looks like liver ... , it's never a good ... #Lung #Ultrasound ... #Pulmonary
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
104°F) • Lobar pneumonia ... gram-negative pneumonia ... Non-Infectious Causes ... Brucellosis • Liver ... or lung abscess
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Unknown • 6-7 cases ... - Clinical manifestations ... cough, dyspnea, fever ... , Pulmonary lymphoma ... Treatment: •
Bilateral B-Lines in case of Pneumonia on Lung POCUS

Young healthy pt with fever/dyspnea. POCUS lung exam
Bilateral B-Lines in case ... healthy pt with fever ... sliding: Pulmonary ... #Lung #POCUS #clinical ... #ultrasound
Liver Abscess
•	Pyogenic abscess, accounts for 80% of abscess.
•	Amebic abscess due to Entamoeba histolytica, accounts for 10%.
•	Fungal
Liver Abscess • ... 50% of solitary liver ... occur in the right Liver ... • Fever in 90% ... cm Continuous fever
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Most common cause ... Lung Abscess - Clinical ... : • 80% have fever ... Intervention: - Fevers ... #Abscess #pulmonary
Lung Abscess
Microbiology:
 • Polymicrobial 
 • Anaerobes (most common) 
Clinical: 
 • Indolent symptoms that evolve
Lung Abscess Microbiology ... most common) Clinical ... to rnonths • Fever ... , hemoptysis Treatment ... Abscess #Diagnosis #Pulmonary
Based on the images alone, it is usually not possible to determine the cause of the
determine the cause ... Lobar pneumonia ... with cough and fever ... Organizing pneumonia ... nodular interstitial lung