9 results
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
Autoimmunity • Chronic ... lung disease ... Chest CT: • Ground-glass ... DDX - Other causes ... hypogammaglobulinemia #immunology
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
infection • Most common ... cause: Aspiration ... pneumonia • Chronic ... seen • Chest CT ... #differential #causes
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
tightness Most Common ... Causes: • Cystic ... in the adjacent lung ... of the affected lung ... high-resolution chest CT
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Diagnosis Framework Disease ... • CT: Halo sign ... Abdominal pain, chronic ... factor • May cause ... Infections #HIV #AIDS
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
verrucous) • Lung ... , Pancreas, Gastric ... • Petechiae Immunologic ... Regurgitation • Colon ... Endocarditis #diagnosis #management
Pulmonary Nodule
Evaluation is guided by nodule size & assessment of probability of malignancy. In addition is
masses & should ... a repeat chest CT ... comorbidities, such as chronic ... coronary artery disease ... Management options
Amiodarone Induced Lung Toxicity Summary

Who?
• 5% of patients
• Dose ≥ 400 mg per day

How?  Possible
hypersensitivity/immunologic ... organizing pneumonia, ARDS ... • Chronic toxicity ... (e.g., chronic ... Pulmonary #diagnosis #management
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
, verrucous) - Lung ... , Pancreas, Gastric ... • Petechiae Immunologic ... Septic emboli cause ... Regurgitation • Colon
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
Inflammatory Myopathies: Commonly ... , pancreas, stomach ... , colon, and lymphoma ... , colon, and lymphoma ... statins - probably caused