33 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 ... #diagnosis #management
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
and Management ... • Most common cause ... seen • Chest CT ... Management: • ... #differential #causes
Acute Respiratory Distress Syndrome – ARDS: Clinical Cheat Sheet

An acute diffuse, inflammatory lung injury, leading to
Respiratory Distress Syndrome ... , inflammatory lung ... permeability, lung ... be detected on CT ... there is no clear cause
Causes of Pleural Effusion - Differential Diagnosis Algorithm
Transudate - Hydrostatic
 • Congestive heart failure
 • Constrictive
Causes of Pleural ... Pneumonectomy • Trapped lung ... Collagen vascular disease ... Gastrointestinal disease ... #causes
Elevated Transaminases / Transaminitis - Differential Diagnosis

 • Infectious: HAV, HCV, HEV, EBV, HSV, CMV
 •
CA, small cell lung ... Metabolic: Wilson Disease ... Vascular: Budd-chiari syndrome ... Differential #Diagnosis #causes ... #hepatology
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 ... DDX - Other causes ... hypogammaglobulinemia #immunology #hematology
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status NTM Cause ... Lady Windermere Syndrome ... : • Syndrome of ... Hematologic malignancy ... Imaging, high res CT
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Diagnosis Framework Disease ... Pneumonia: • 3 syndromes ... angioinvasive disease ... • CT: Halo sign ... factor • May cause
Streptococcal Toxic Shock Syndrome (STSS)
Complication of invasive GAS disease characterized by shock & MOF → occurs
Streptococcal Toxic Shock Syndrome ... of invasive GAS disease ... GAS in 30% of cases ... kidneys, liver, lung ... STSS #treatment #management
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
Hepatopulmonary Syndrome ... absence of intrinsic lung ... disease Caused ... on radioactive lung ... hepatopulmonary #syndrome