10 results
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
IgG4-Related Disease ... Clinical history ... biliary, renal, lung ... concentration PET-CT ... #diagnosis #management
Pott's Disease in Tuberculosis - Diagnosis and Management Summary
Epidemiology:
 - Typically from TB endemic areas
 -
Pott's Disease in ... extrapulmonary cases Clinical ... Signs/Symptoms: ... years - May have signs ... involvement - CT
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
infection • Most common ... Lung Abscess - Clinical ... seen • Chest CT ... westermani • Other: TB ... #Abscess #pulmonary
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
to 8 years Clinical ... • Chronic lung ... Chest CT: • Ground-glass ... : • Low serum IgG ... trough levels of IgG
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
tightness Most Common ... • Infection: TB ... Nasal polyps and signs ... in the adjacent lung ... high-resolution chest CT
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Kansasii: • Mimics TB ... Disease: Clinical ... Disease: • Clinical ... Imaging, high res CT ... differential #diagnosis #infectiousdiseases
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Diagnosis Framework Disease ... • CT: Halo sign ... infiltrates, mimicking TB ... Infections #HIV #AIDS #pulmonary ... differential #diagnosis #infectiousdiseases
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
droppings • Most common ... has five major clinical ... change in the lungs ... ) #Mycoses #InfectiousDiseases ... Fungal #Diagnosis #Management
Coccidioidomycosis (Valley Fever) - Diagnosis and Management Summary

WHAT?
 • Coccidioidomycosis due to Coccidioides immitis or Coccidioides
Diagnosis and Management ... spherules in the lungs ... check for IgM and IgG ... TREATMENT: Clinically ... #infectiousdiseases
Langerhans Cell Histiocytosis (LCH)

Granulomatous Lesions comprising langerin-positive histiocytes and an inflammatory infiltrate can arise in virtually
populations) CLINICAL ... • Pulmonary Symptoms ... Imaging: X-rays, CT ... PET-CT / MRI: Staging ... Histiocytosis #Diagnosis #Management