25 results
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status NTM Cause ... : Chronic lung infections ... Pulmonary Disease ... Lung Disease: ... Imaging, high res CT
Rapidly Growing Mycobacterial Infections

 • Mycobacterium abscessus - Is the most pathogenic and the most likely
most likely to cause ... pulmonary infection ... with underlying lung ... disease. 15% mortality ... infectiousdiseases #NTM
Nontuberculous mycobacteria
Nontuberculous mycobacteria, also known as atypical mycobacteria, are all the other mycobacteria which can cause
mycobacteria which can cause ... pulmonary disease ... upper lobes due to infection ... Clinical #Radiology #CXR ... #Mycobacteria #NTM
Chronic Cough - Differential Diagnosis Algorithm
Red Flags:
 • Fever, night sweats, chills (infection)
 • Weight loss,
sweats, chills (infection ... Dyspnea (underlying lung ... ) • Abnormal CXR ... refer + order CT ... Diagnosis #Algorithm #causes
Bronchiectasis - Permanent dilation of an airway
WHAT CAN YOU SEE ON CT?
1) Lack of tapering of
CAN YOU SEE ON CT ... Immunodeficiency 3) Infection ... Bacterial, TB, NTM ... Rheumatologic/Autoimmune diseae ... Bronchiectasis #pulmonary
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Pulmonary Infections ... M.tuberculosis, NTM ... failure, COPD, Lung ... +/- High res CT ... Diseases Fellows
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
throughout the lungs ... hematogenous spread of a disease ... differential #diagnosis #pulmonary ... #CXR #clinical ... #CT
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... Blood cultures • CXR ... ) • CXR upright ... seen • Chest CT ... #Abscess #pulmonary
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Connective tissue diseases ... : TB, NTM, PNA ... 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
affecting the lungs ... (NTM) • Fungal ... • Lymphoma • Lung ... and Culture • CXR ... • Check CXR and