33 results
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... Negative Abscess ... - Differential Diagnosis ... Autoimmune: Crohn's disease ... #InfectiousDiseases
CAVITY – a useful mnemonic for the causes of a cavitating lung mass.

C = cancer
mnemonic for the causes ... vascular - pulmonary ... abscess (TB, fungal ... staph aureus) T = trauma ... bronchogenic cyst #Diagnosis
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... • Most common cause ... Prevotella • Fungal ... #pulmonary #differential ... #treatment #diagnosis
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
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis Algorithm
Neoplasm:
• NHL
• Hodgkin's lymphoma
• Leukemia
• Solid
Causes of Fever ... - Differential Diagnosis ... Factitious fever • Trauma ... Osteomyelitis • Occult abscess ... Infection: • Fungal
Hemoptysis - Differential Diagnosis Framework
Airways: 
 • Bronchitis
 • Bronchiectasis
 • Malignancy: Primary bronchogenic CA, Endobronchial
- Differential Diagnosis ... Foreign Bodies • Trauma ... westermani, PNA, Lung abscess ... syndrome • Valvular Disease ... #pulmonary #causes
Rapidly Growing Mycobacterial Infections

 • Mycobacterium abscessus - Is the most pathogenic and the most likely
Mycobacterium abscessus ... pulmonary infection ... underlying lung disease ... Mycobacterium #diagnosis ... #differential #infectiousdiseases
Hemoptysis - Differential Diagnosis Framework
Massive Hemoptysis: >150-300 mL in 24h
Airway disease: 
 • Bronchitis, Bronchiectasis, Malignancy
in 24h Airway disease ... Necrotizing PNA, Abscess ... Ebola, Dengue), Fungal ... hemoptysis • Trauma ... #pulmonary #causes
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
Invasive Aspergillus (IA) - Diagnosis and Management
Aspergillus is ubiquitous in nature. Most invasive infections are caused
infections are caused ... presentations: • Pulmonary ... vori Infectious Diseases ... #Management #treatment ... #fungal #infectiousdiseases