22 results
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... polymicrobial infection ... Lung abscess ... seen • Chest CT ... Lung Abscess
Liver Mass - Differential Diagnosis Algorithm
Cystic:
 • Benign 
     - Simple: Simple
Polycystic Liver Disease ... Benign - Infectious ... : Abscess ... secondary - Breast, Lung ... #Hepatology
Hemoptysis - Differential Diagnosis Framework
Airways: 
 • Bronchitis
 • Bronchiectasis
 • Malignancy: Primary bronchogenic CA, Endobronchial
Bronchitis • Bronchiectasis ... Parenchyma: • Infection ... westermani, PNA, Lung ... abscess, Aspergillosis ... syndrome • Valvular Disease
Bronchiectasis - Permanent dilation of an airway
WHAT CAN YOU SEE ON CT?
1) Lack of tapering of
Bronchiectasis - ... CAN YOU SEE ON CT ... involving both lungs ... Immunodeficiency 3) Infection ... Rheumatologic/Autoimmune diseae
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Chronic inflammation causes ... Most Common Causes ... in the adjacent lung ... high-resolution chest CT ... mycobacteria Treatment
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
• Chronic lung ... Bronchiectasis ... lymphocytic interstitial lung ... Chest CT: • Ground-glass ... DDX - Other causes
Back Pain - Differential Diagnosis
Primary Back Pathology:
 • Musculoligamentous injury (a.k.a. lumbosacral strain)
 • Spondylosis (i.e.
Systemic Diseases ... Manifestations: • Infection ... : Epidural abscess ... , Aneurysm • Pancreas ... Differential #Diagnosis #causes
Causes of Pleural Effusion - Differential Diagnosis Algorithm
Transudate - Hydrostatic
 • Congestive heart failure
 • Constrictive
Causes of Pleural ... Pneumonectomy • Trapped lung ... Urinothorax Exudate - Infectious ... • Subphrenic abscess ... Diagnosis #Algorithm #Hepatology
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status NTM Cause ... Centrilobular nodules - Bronchiectasis ... - M. abscessus ... chelonae • M abscessus ... Imaging, high res CT
Hemoptysis - Differential Diagnosis Framework
Massive Hemoptysis: >150-300 mL in 24h
Airway disease: 
 • Bronchitis, Bronchiectasis, Malignancy
in 24h Airway disease ... • Bronchitis, Bronchiectasis ... Parenchyma: • Infection ... Necrotizing PNA, Abscess ... Diagnosis #pulmonary #causes