14 results
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... infection • Most common ... pneumonia • Chronic ... seen • Chest CT ... Abscess Differential
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
IgG4-Related Disease ... biliary, renal, lung ... concentration PET-CT ... increased IgG4+ cells ... #diagnosis #management
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
to impaired B-cell ... Autoimmunity • Chronic ... lung disease ... Chest CT: • Ground-glass ... Malignancies • Chronic
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
lung disease ... encounters due to NTM: Chronic ... Advanced HIV (CD4 cell ... Imaging, high res CT ... NTM #Infections #differential
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
tightness Most Common ... in the adjacent lung ... of the affected lung ... high-resolution chest CT ... Bronchiectasis #pulmonary #differential
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
verrucous) • Lung ... , Pancreas, Gastric ... Marantic (NTBE) Differential ... Regurgitation • Colon ... Endocarditis #diagnosis #management
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 ... Abdominal pain, chronic
Hodgkin's Lymphoma Overview

Hodgkin's lymphoma (HL) is an uncommon hematological malignancy arising from mature B cells. It
(NSHL) - (most common ... Mediastinal mass) • CT ... number of sites of disease ... physical exam, CT ... hematology #oncology #management
Giant cell arteritis (GCA)

Giant cell arteritis (GCA) definition: Most common systemic inflammatory vasculitis in older adults
Giant cell arteritis ... very remarkable w/differential ... in literature (NEJM ... cases (Cornelia NEJM ... Symptoms #Diagnosis #Management
Squamous-Cell Carcinoma of the Lung- ...Physical examination revealed decreased air entry in the base of the
Squamous-Cell Carcinoma ... indicated stage IV disease ... #NEJM #clinical ... #radiology #CT # ... squamous #cell #