15 results
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
IgG4-Related Disease ... head and neck, pancreas ... biliary, renal, lung ... concentration PET-CT ... IgG4 #Related #Disease
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Classification grp IV ... mucogenicum • HIV ... Advanced HIV (CD4 ... Imaging, high res CT ... differential #diagnosis #infectiousdiseases
Travel History - Clues to Infectious Disease Diagnosis in a Traveler 
 • Where did you
to Infectious Disease ... rural → Geographic disease ... association • How long ... , HIV, Hepatitis ... HPI #Interview #InfectiousDiseases
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Periodontal disease ... • IV substance ... seen • Chest CT ... Antibiotics: - IV ... Carbapenems - IV
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
in HIV - Differential ... Diagnosis Framework Disease ... angioinvasive disease ... • CT: Halo sign ... differential #diagnosis #infectiousdiseases
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
• Chronic lung ... lymphocytic interstitial lung ... Chest CT: • Ground-glass ... Management: • Lifelong IV ... Epstein-Barr syndrome, HIV
AIDS-defining illnesses
 - Candidiasis of the esophagus, bronchi, trachea, or lungs [(but NOT the mouth (thrush)]
bronchi, trachea, or lungs ... Cytomegalovirus disease ... Encephalopathy, HIV ... syndrome due to HIV ... #InfectiousDiseases
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Infections in HIV-AIDS ... CD4 < 200: CMV, HSV ... failure, COPD, Lung ... CXR +/- High res CT ... Infectious Diseases
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
CNS Infection in HIV ... Principles of HIV-Associated ... enhancement on CT ... Demyelinating disease ... opportunistic #InfectiousDiseases
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Pre-existing valvular disease ... Congenital heart disease ... verrucous) • Lung ... , Pancreas, Gastric ... • Metastatic disease