11 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
infectionPulmonary ... Progression: • Upper lobe ... Tuberculosis Diagnosis ... Active TB: • ... #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
infectionPulmonary ... Progression: • Upper lobe ... Tuberculosis Diagnosis ... Active TB: • ... #Diagnosis #Management
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
Testing LATENT TB ... • LTBI is diagnosed ... infection in patients ... IGRA/QuantiFERON-TB ... used to exclude pulmonary
Tuberculin Skin Test Interpretation - Threshold for treatment
Induration cutoff >5mm:
 • Recent exposure to an individual
Tuberculin Skin Test ... individual with active ... TB • Abnormal ... consistent with old TB ... #diagnosis #Interpretation
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
: TB, NTM, PNA ... parenchyma Diagnosis ... function tests: ... Sweat chloride test ... #differential #diagnosis
Cytomegalovirus (CMV) in HIV-AIDS Patients
Cytomegalovirus (CMV): double-stranded DNA virus, herpesvirus family.
CMV infection: virus isolation or detection
CMV infection: virus ... Diagnosis: Quantitative ... pp65 antigenemia test ... Pancreatitis • Pulmonary ... association with PJP/TB
Bronchiectasis - Permanent dilation of an airway
WHAT CAN YOU SEE ON CT?
1) Lack of tapering of
involving a segment or lobe ... Immunodeficiency 3) Infection ... (Bacterial, TB, ... Bronchiectasis #pulmonary ... #diagnosis #differential
IDSA Recommendations for Treating Mycobacterium Tuberculosis Infection and Disease in HIV-AIDS
Treating LTBI (to prevent TB disease)
Indications:
(+) screening test ... no evidence of active ... treatment for active ... of screening test ... and molecular diagnostic
Immune Reconstitution Inflammatory Syndrome - Overview of IRIS

What Is IRIS?
	• A state of hyperinflammatory response that
(<100), except TB ... , pulmonary infiltrates ... lymphadenitis, pulmonary ... , hypoxia, and pulmonary ... • Persistently active
Nontuberculous Mycobacteria (NTM) Infections 

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