22 results
Cavitary Lung Disease - Differential Diagnosis and Workup Algorithm
Acute / Subacute:
 • Acute Infections: Lung abscess,
- Differential ... Infection, Nocardia Chronic ... 12 weeks): • Chronic ... Infections: TB, ... lesion #pulmonary #differential
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 ... • Silicosis • Chronic ... • Progressive lung ... malignancy, and chronic
Chronic Cough - Differential Diagnosis Algorithm
Red Flags:
 • Fever, night sweats, chills (infection)
 • Weight loss,
Chronic Cough - ... Differential Diagnosis ... Dyspnea (underlying lung ... lymadenopathy, clubbing, chest ... disease #Chronic
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 ... • Silicosis • Chronic ... • Progressive lung ... malignancy, and chronic
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
pneumonia • Chronic ... level seen • Chest ... westermani • Other: TB ... Abscess Differential ... Abscess #pulmonary #differential
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
Patterns - Differential ... Miliary Infection (TB ... Acute Eos PNA • Chronic ... Pneumonia, COP, Chronic ... #CT #Patterns #Differential
Eosinophilia - Differential Diagnosis Algorithm
Idiopathic Eosinophilia
Primary Eosinophilia:
 • Primary hypereosinophilic syndrome
 • Eosinophilic Leukemia
 • MPN/MDS
Eosinophilia - Differential ... GI, lung, skin), ... Mycobacteria (TB ... insufficiency, Chronic ... #Eosinophilia #Differential
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Loss of weight • Chest ... • Infection: TB ... in the adjacent lung ... of the affected lung ... Bronchiectasis #pulmonary #differential
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... in HIV - Differential ... Abdominal pain, chronic ... infiltrates, mimicking TB ... AIDS #pulmonary #differential
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Immunocompromised status • Chronic ... encounters due to NTM: Chronic ... Kansasii: • Mimics TB ... • Dyspnea, • Chest ... NTM #Infections #differential