22 results
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... polymicrobial infection ... • Most common cause ... : • 80% have fever ... Abscess Diagnosis
Reversed Halo Sign - Infectious and Non-Infectious Differential Diagnosis
Definition: A focal rounded area of GGO surrounded
Reversed Halo Sign ... Differential Diagnosis ... Causes: Mucormycosis ... Dermatomyositis, Lung ... , Pulmonary embolism
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... - Differential Diagnosis ... • CT: Halo sign ... factor • May cause ... #Infections #HIV
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
Differential Diagnosis ... Causes: • Still's ... Brucellosis Faget's Sign ... Brucellosis • Liver or lung ... #Differential #Diagnosis
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
pathognomonic signs ... common, Aortic root abscess ... large infarct - Infectious ... #Endocarditis #comparison ... #table
Fever in Returning Travelers from Tropical Regions - Frequent Differential Diagnoses
Medical History:
 • Skin exposure to
Frequent Differential Diagnoses ... without localizing signs ... Cough, dyspnea - Pneumonia ... typhoid, pulmonary embolism ... #differential #diagnosis
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
- Lung point ... pleura reflection) Pneumonia ... sliding Pulmonary Embolism ... #differential #diagnosis ... #signs #Lung #POCUS
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Infectious: • Pre-existing ... verrucous) • Lung ... night sweats, fever ... Cause Injury By ... Persistent bacteremia/fevers
Causes of Pleural Effusion - Differential Diagnosis Algorithm
Transudate - Hydrostatic
 • Congestive heart failure
 • Constrictive
Pneumonectomy • Trapped lung ... Urinothorax Exudate - Infectious ... : • Pneumonia ... • Subphrenic abscess ... • Pulmonary embolism
Approach to Eosinophilic Lung Diseases
 • Acute Eosinophilic Pneumonia (< 1 wk) - ~30yo, M; Recent
to Eosinophilic Lung ... Acute Eosinophilic Pneumonia ... , CNS, skin • Infectious ... #differential #diagnosis ... #comparison #table