21 results
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
tuberculosis (LTBI) Pathophysiology ... affecting the lungs ... • Progressive lung ... Tuberculosis Diagnosis ... #Diagnosis #Management
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
tuberculosis (LTBI) Pathophysiology ... affecting the lungs ... • Progressive lung ... Tuberculosis Diagnosis ... #Diagnosis #Management
CAVITY – a useful mnemonic for the causes of a cavitating lung mass.

C = cancer
mnemonic for the causes ... of a cavitating lung ... embolus I = infection ... (TB, fungal, staph ... bronchogenic cyst #Diagnosis
Hemoptysis - Differential Diagnosis Framework
Airways: 
 • Bronchitis
 • Bronchiectasis
 • Malignancy: Primary bronchogenic CA, Endobronchial
- Differential Diagnosis ... Parenchyma: • Infection ... : TB, Paragonimus ... westermani, PNA, Lung ... #pulmonary #causes
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... polymicrobial infection ... Abscess Pathophysiology ... westermani • Other: TB ... #Abscess #pulmonary
Pott's Disease in Tuberculosis - Diagnosis and Management Summary
Epidemiology:
 - Typically from TB endemic areas
 -
extrapulmonary cases ... symptoms of active pulmonary ... decreased reflexes Pathophysiology ... for concomitant pulmonary ... #Diagnosis #Management
Bronchiectasis - Permanent dilation of an airway
WHAT CAN YOU SEE ON CT?
1) Lack of tapering of
Immunodeficiency 3) Infection ... (Bacterial, TB, ... Bronchiectasis #pulmonary ... #diagnosis #differential ... #causes
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Chronic inflammation causes ... Most Common Causes ... : TB, NTM, PNA ... in the adjacent lung ... of the affected lung
Hemoptysis - Differential Diagnosis Framework
Massive Hemoptysis: >150-300 mL in 24h
Airway disease: 
 • Bronchitis, Bronchiectasis, Malignancy
- Differential Diagnosis ... Parenchyma: • Infection ... : Bacterial (TB, ... Postprocedural, Lung ... #pulmonary #causes
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status NTM Cause ... Kansasii: • Mimics TB ... Diagnosis Of NTM ... Exclusion of other diagnosis ... #differential #diagnosis