34 results
Regression of Clubbing after Treatment of Lung Cancer #Clinical #PhysicalExam #Radiology #Clubbing #Regression #LungCancer #CT #NEJM
Clubbing after Treatment ... of Lung Cancer ... Regression #LungCancer #CT ... #NEJM
Rapidly Growing Mycobacterial Infections

 • Mycobacterium abscessus - Is the most pathogenic and the most likely
with underlying lung ... disease. 15% mortality ... as disseminated disease ... It can also cause ... #differential #infectiousdiseases
Chronic Cough - Differential Diagnosis Algorithm
Red Flags:
 • Fever, night sweats, chills (infection)
 • Weight loss,
sweats, chills (infection ... Dyspnea (underlying lung ... refer + order CT ... History of cancer, lung ... Diagnosis #Algorithm #causes
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... • Most common cause ... seen • Chest CT ... hemorrhage • Treatment ... #differential #causes
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 ... IgG4 #Related #Disease
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status • Chronic lung ... status NTM Cause ... Lungs: • 90% ... Imaging, high res CT ... differential #diagnosis #infectiousdiseases
Back Pain - Differential Diagnosis
Primary Back Pathology:
 • Musculoligamentous injury (a.k.a. lumbosacral strain)
 • Spondylosis (i.e.
Manifestations: • Infection ... (most common: lung ... (most common: lung ... , Aneurysm • Pancreas ... Differential #Diagnosis #causes
Bronchiectasis - Permanent dilation of an airway
WHAT CAN YOU SEE ON CT?
1) Lack of tapering of
CAN YOU SEE ON CT ... segment or lobe of lung ... involving both lungs ... Immunodeficiency 3) Infection ... Rheumatologic/Autoimmune diseae
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
• Chronic lung ... disease • ... lymphocytic interstitial lung ... Chest CT: • Ground-glass ... DDX - Other causes
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Most Common Causes ... in the adjacent lung ... of the affected lung ... high-resolution chest CT ... mycobacteria Treatment