27 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
Progression: • Upper lobe ... Tuberculosis Diagnosis ... Tuberculin skin test ... #Diagnosis #Management ... #Treatment #ActiveTB
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
Progression: • Upper lobe ... Tuberculosis Diagnosis ... Tuberculin skin test ... #Diagnosis #Management ... #Treatment #ActiveTB
Tuberculin Skin Test Interpretation - Threshold for treatment
Induration cutoff >5mm:
 • Recent exposure to an individual
Tuberculin Skin Test ... Threshold for treatment ... individual with active TB ... consistent with old TB ... #diagnosis #Interpretation
Jobe's Test ("Empty Can" Test) 1. Position arm in scapular plane and point thumb down as
Jobe's Test ("Empty ... Can" Test) 1. ... #Diagnosis #Ortho ... #RotatorCuff #Test ... #EmptyCan #Jobe
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
Testing LATENT TB ... • LTBI is diagnosed ... IGRA/QuantiFERON-TB ... age ACTIVE TB ... used to exclude pulmonary
Cavitary Lesion with Air-Fluid Level on Chest XRay

70+ year old man with PMH of latent TB
PMH of latent TB ... s/p treatment and ... original CXR Labeled ... ChestXRay #Clinical #Pulmonary
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
• Infection: TB ... parenchyma Diagnosis ... function tests: ... mycobacteria Treatment ... #differential #diagnosis
Leptospirosis
Pathogen: Leptospira (interrogans, kirschneri, noguchii)
Risk Factors:
 • Occupational exposure - Farmers, ranchers, trappers, veterinarians
 • Recreational
failure • Severe pulmonary ... disease ARDS Diagnosis ... agglutination - test ... #microbiology #diagnosis ... #treatment #management
Blastomycosis (Blastomyces): Gilchrist’s disease, Chicago disease - Summary Sheet
 • Morphology
 • Geography, Reservoir and Mode
- Acute pulmonary ... presentation of TB ... with an upper lobe ... blastomycosis • Diagnosis ... #Blastomyces #diagnosis
Bronchiectasis - Permanent dilation of an airway
WHAT CAN YOU SEE ON CT?
1) Lack of tapering of
involving a segment or lobe ... Infection (Bacterial, TB ... Bronchiectasis #pulmonary ... #diagnosis #differential