18 results
Cavitary Lung Disease - Differential Diagnosis and Workup Algorithm
Acute / Subacute:
 • Acute Infections: Lung abscess,
- Differential Diagnosis ... Infections: Lung abscess ... Septic Emboli, Fungal ... Chronic Infections: TB ... #lesion #pulmonary
CAVITY – a useful mnemonic for the causes of a cavitating lung mass.

C = cancer
vascular - pulmonary ... infection - pulmonary ... abscess (TB, fungal ... staph aureus) T = trauma ... bronchogenic cyst #Diagnosis
Hemoptysis - Differential Diagnosis Framework
Airways: 
 • Bronchitis
 • Bronchiectasis
 • Malignancy: Primary bronchogenic CA, Endobronchial
- Differential Diagnosis ... Foreign Bodies • Trauma ... • Infection: TB ... westermani, PNA, Lung abscess ... syndrome • Valvular Disease
Adult-Onset Still's Disease
Clinical triad: Fever, Arthralgia/arthritis, Skin rash ± odynophagia
+ Biological inflammation: Increased neutrophils, Hyperferritinemia, decreased
Adult-Onset Still's ... Differential Diaqnoses ... Complications: MAS ... hepatitis • Pulmonary ... #treatment #rheumatology
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... hemorrhage • Treatment ... Prevotella • Fungal ... westermani • Other: TB ... #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
infection (NTM) • Fungal ... emboli • Lung abscess ... Tuberculosis Diagnosis ... #Diagnosis #Management ... #Treatment #ActiveTB
Hemoptysis - Differential Diagnosis Framework
Massive Hemoptysis: >150-300 mL in 24h
Airway disease: 
 • Bronchitis, Bronchiectasis, Malignancy
in 24h Airway disease ... Infection: Bacterial (TB ... Necrotizing PNA, Abscess ... Ebola, Dengue), Fungal ... #pulmonary #causes
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
infection (NTM) • Fungal ... emboli • Lung abscess ... Tuberculosis Diagnosis ... #Diagnosis #Management ... #Treatment #ActiveTB
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
extrapulmonary disease ... or meningitic disease ... Sinusitis • Brain abscess ... ) #Mycoses #InfectiousDiseases ... #Fungal #Diagnosis
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Kansasii: • Mimics TB ... Diagnosis Of NTM ... Exclusion of other diagnosis ... #differential #diagnosis ... #infectiousdiseases