9 results
Cavitary Lung Disease - Differential Diagnosis and Workup Algorithm
Acute / Subacute:
 • Acute Infections: Lung abscess,
- Differential ... abscess, Necrotizing ... Infections: TB, ... #lesion #pulmonary ... #differential
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
pneumonia • Chronic ... pain, hemoptysis, dyspnea ... westermani • Other: TB ... Abscess Differential ... #Abscess #pulmonary
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
• Silicosis • Chronic ... abscess Primary ... reactivation of a ... hemoptysis • Dyspnea ... malignancy, and 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
• Silicosis • Chronic ... abscess Primary ... reactivation of a ... hemoptysis • Dyspnea ... malignancy, and chronic
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
gordonae - 99.9% a ... Kansasii: • Mimics TB ... disease through local ... Weakness, • Dyspnea ... NTM #Infections #differential
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
in HIV - Differential ... Rapid onset of a ... Abdominal pain, chronic ... infiltrates, mimicking TB ... Infections #HIV #AIDS #pulmonary
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
• Hypoxia • Dyspnea ... • Infection: TB ... in the adjacent lung ... Immunoglobulins (Ig M, A, ... #differential #
Sarcoidosis - Diagnosis and Management Summary
Epidemiology
1) High incidence in Scandinavian countries (11-24 cases per 100,000 individuals
B-cell activity → local ... granulomas within the lungs ... granulomas in a ... Pulmonary: dyspnea ... , cough, chest pain
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
aches, joint pain, chest ... Sinusitis • Brain abscess ... change in the lungs ... endocarditis Local ... nails, bronchi, lungs