34 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
affecting the lungs ... disease • DM DDX ... • Progressive lung ... characteristic features Clinical ... : • Fever • Weight
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 ... disease • DM DDX ... • Progressive lung ... characteristic features Clinical ... : • Fever • Weight
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
Differential Diagnosis ... • Lymphoma • TB ... Causes: • Still's ... Sweats: • TB ... Brucellosis • Liver or lung
CAVITY – a useful mnemonic for the causes of a cavitating lung mass.

C = cancer
mnemonic for the causes ... embolus I = infection ... (TB, fungal, staph ... Cavitary #Lesions #Differential ... #Lung #Pulmonary
Hemoptysis - Differential Diagnosis Framework
Airways: 
 • Bronchitis
 • Bronchiectasis
 • Malignancy: Primary bronchogenic CA, Endobronchial
Hemoptysis - Differential ... Parenchyma: • Infection ... : TB, Paragonimus ... westermani, PNA, Lung ... #causes
Chronic Cough - Differential Diagnosis Algorithm
Red Flags:
 • Fever, night sweats, chills (infection)
 • Weight loss,
Chronic Cough - Differential ... Red Flags: • Fever ... sweats, chills (infection ... serious underlying dx ... Diagnosis #Algorithm #causes
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... Lung Abscess - Clinical ... : • 80% have fever ... westermani • Other: TB ... #Abscess #pulmonary
Ear Pain (Otalgia) - Differential Diagnosis Framework

Primary Otalgia 
 - Pain that originates from the ear
Pain (Otalgia) - Differential ... , weight loss, fever ... subdural hematoma, lung ... To Narrow Down Ddx ... the tragus to differentiate
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 ... run-down or tired • Fevers ... Most Common Causes ... : TB, NTM, PNA ... #differential #