24 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
Droplets that contain bacilli ... affecting the lungs ... • Lymphoma • Lung ... • Progressive lung ... • Upper lobe lung
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
Droplets that contain bacilli ... affecting the lungs ... • Lymphoma • Lung ... • Progressive lung ... • Upper lobe lung
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 ... #Differential #Lung
Hemoptysis - Differential Diagnosis Framework
Airways: 
 • Bronchitis
 • Bronchiectasis
 • Malignancy: Primary bronchogenic CA, Endobronchial
Parenchyma: • Infection ... : TB, Paragonimus ... westermani, PNA, Lung ... syndrome, Idiopathic pulmonary ... #causes
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Pulmonary Infections ... failure, COPD, Lung ... • CD4 < 200: Pulmonary ... /- High res CT chest ... Fungal, AFB), TB
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
Bronchiectasis - Permanent dilation of an airway
WHAT CAN YOU SEE ON CT?
1) Lack of tapering of
involving both lungs ... WHAT ARE COMMON CAUSES ... Immunodeficiency 3) Infection ... (Bacterial, TB, ... Bronchiectasis #pulmonary
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... • Most common cause ... westermani • Other: TB ... #Abscess #pulmonary ... #differential #causes
Neurological Manifestations of Tuberculosis
Spinal Arachnoiditis & Polyradiculopathy:
 • Subacute onset of limb weakness, bladder/bowel dysfunction, muscle
lymphadenopathy, pulmonary ... Abscess: • More bacilli ... TB • Many possible ... neurological symptoms • Caused ... #differential #TB
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status NTM Cause ... Illnesses: • Pulmonary ... Kansasii: • Mimics TB ... complicate MAC pulmonary ... • Dyspnea, • Chest