10 results
Chronic Cough - Differential Diagnosis Algorithm
Red Flags:
 • Fever, night sweats, chills (infection)
 • Weight loss,
Dyspnea (underlying lung ... disease or CHF) ... ) • Abnormal CXR ... refer + order CT ... History of cancer, lung
Bronchiectasis - Permanent dilation of an airway
WHAT CAN YOU SEE ON CT?
1) Lack of tapering of
CAN YOU SEE ON CT ... involving both lungs ... Infection (Bacterial, TB ... Rheumatologic/Autoimmune diseae ... #pulmonary #diagnosis
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
• Productive cough ... pneumothorax, bronchiectasis ... and Culture • CXR ... • Check CXR and ... #Diagnosis #Management
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... dyspnea, productive cough ... seen • Chest CT ... westermani • Other: TB ... #Abscess #pulmonary
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Symptoms: • Chronic cough ... • Infection: TB ... in the adjacent lung ... of the affected lung ... high-resolution chest CT
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
• Productive cough ... pneumothorax, bronchiectasis ... and Culture • CXR ... • Check CXR and ... #Diagnosis #Management
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Centrilobular nodules - Bronchiectasis ... Kansasii: • Mimics TB ... - Cough and lung ... Lung Disease: ... Imaging, high res CT
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
- Differential Diagnosis ... Framework Disease ... • CT: Halo sign ... infiltrates, mimicking TB ... Infections #HIV #AIDS #pulmonary
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
failure, COPD, Lung ... +/- High res CT ... Fungal, AFB), TB ... Infectious Diseases ... HIVAIDS #workup #diagnosis
Broncholithiasis - Differential Diagnosis Framework

 • Also known as: Lung stones, pulmoliths, pneumoliths, bronchial calculi
 •
Also known as: Lung ... Nonspecific chronic cough ... pneumonia, • Bronchiectasis ... bronchus • Chest CT ... Tracheobronchial Diseases