16 results
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... • CT: Halo sign ... : • Upper lung ... Constitutional symptoms ... Infections #HIV #AIDS #pulmonary
Fever in Returning Travelers from Tropical Regions - Frequent Differential Diagnoses
Medical History:
 • Skin exposure to
localizing signs ... or symptoms - Malaria ... amebic abscess of liver ... or elevation of liver ... Cough, dyspnea - Pneumonia
Venn Diagram - Does this patient have pneumonia?
Diagnosis is generally based on three lines of evidence:
infiltrate (e.g., CXR, CT ... Inflammation (e.g., fever ... symptoms (e.g., ... chest pain) and signs ... #Pneumonia #Venn
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
19 Patterns of Lung ... Findings on Chest CT ... Organizing Pneumonia ... #Pulmonary #ChestCT ... #radiology #CTChest
Good example of 'shred sign' in a patient with fever, cough and shortness of breath. 

This
example of 'shred sign ... a patient with fever ... on CXR/CT imaging ... photo #ultrasound #lung ... #pulmonary
Elevated Lactate Dehydrogenase (LDH) - Differential Diagnosis Framework

LDH is a cytoplasmic enzyme present in tissues throughout
RBCs, muscle, liver ... Legionnaires disease • Pulmonary ... • Other lung ... elevated serum LDH level ... associated with any symptoms
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
the setting of liver ... • Underlying liver ... hypertension • Liver ... resolution of symptoms ... management #treatment #hepatology
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Illnesses: • Pulmonary ... gastrointestinal symptoms ... (elevations of liver ... • Clinical (Symptoms ... Imaging, high res CT
Community Acquired Pneumonia (CAP) - Diagnosis and Management

Pneumonia Signs/Symptoms:
 • Confusion/disorientation (LR + 1.9)
 • Cough
Signs/Symptoms: ... urea nitrogen level ... radiograph or CT ... procalcitonin level ... Management #treatment #Pulmonary
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
• Chronic lung ... disease • Liver ... Chest CT: • Ground-glass ... community-acquired infections: Pneumonia ... Low serum IgG level