Sandbox:Aditya

Classification

Based on duration

• Acute
  • If symptoms present for less than 6 weeks before presenting to medical care
• Chronic
  • If symptoms persist for more than 6 weeks

Based on Etiology

• Primary
  • If abscess develops in patients who have been healthy previously or with conditions who are more prone for aspiration it's called primary
    • Aspiration of oropharyngeal secretions
    • Immunodeficiency conditions like HIV
    • Necrotizing pneumonitis
• Secondary
  • Bronchial obstruction
  • Hematogenic dissemination
  • Infection spread from mediastinum
  • coexisting Lung Diseases

Based on way of spreading

• Bronchiogenic
  • Aspiration of Oropharyngeal screations
  • Bronchial obsturction by Tumor
  • Foregin body,Conegnital Malformations and Enlarged LymphNodes
• Hematogenic
  • Infective endocarditis
  • Abdominal Sepsis
  • Septic Thromboembolisim