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Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
Pathology of Pneumonia
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Pathology of Pneumonia

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Pathology of Pneumonia: …

Pathology of Pneumonia:
Broncho- pneumonia,
Lobar Pneumonia,
Lung Abscess,
Lung Fungal Absces,
Normal Lung

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  • 1. The best way to make your dreams come true is to wake up... — Paul Valery
  • 2. Pathology of Pneumonia Dr. Venkatesh M. Shashidhar Senior Lecturer in Pathology Fiji School of Medicine
  • 3. Introduction: <ul><li>Daily 10,000 liters of air - filtered..! </li></ul><ul><li>Pneumonia : Inflammation of lung. </li></ul><ul><li>Respiratory tract infections – commonest in medical practice. </li></ul><ul><li>Enormous morbidity & mortality. </li></ul>
  • 4. Etiology: <ul><li>Decreased resistance - General/immune </li></ul><ul><li>Virulent infection - Lobar pneumonia </li></ul><ul><li>Clearing mechanism </li></ul><ul><ul><li>Cough Reflex </li></ul></ul><ul><ul><li>Mucosal Injury </li></ul></ul><ul><ul><li>Low Alveolar defense </li></ul></ul><ul><ul><li>Pulmonary edema </li></ul></ul><ul><ul><li>Obstructions </li></ul></ul>
  • 5. Types: <ul><li>Viral </li></ul><ul><li>Bacterial </li></ul><ul><li>Mycoplasmal </li></ul><ul><li>Fungal </li></ul>
  • 6. Patterns of Pulmonary infections: <ul><li>Airway - Bronchitis, Bronchiectasis </li></ul><ul><li>Parenchyma </li></ul><ul><ul><li>Pneumonia </li></ul></ul><ul><ul><ul><li>Bronchopneumonia </li></ul></ul></ul><ul><ul><ul><li>Lobar pneumonia </li></ul></ul></ul><ul><ul><li>Lung abscess </li></ul></ul><ul><ul><li>Tuberculosis </li></ul></ul>
  • 7. Bronchopneumonia <ul><li>Staph, Strep, Pneumo & H. influenza </li></ul><ul><li>Patchy consolidation – not limited to lobes. </li></ul><ul><li>Suppurative inflammation </li></ul><ul><li>Usually bilateral </li></ul><ul><li>Lower lobes common </li></ul><ul><li>Complications: </li></ul><ul><ul><li>Abscess </li></ul></ul><ul><ul><li>Empyema </li></ul></ul><ul><ul><li>Dissemination </li></ul></ul>
  • 8. Broncho-pneumonia
  • 9. Broncho-pneumonia
  • 10. Broncho-pneumonia
  • 11. Bronchopneumonia - Abscess formation
  • 12. Bronchopneumonia:
  • 13. Bronchopneumonia:
  • 14. Bronchopneumonia - Abscess formation
  • 15. Lung RSV Pneumonia:
  • 16. Bronchopneumonia - CT
  • 17. Bronchopneumonia - CT
  • 18. Lobar Pneumonia: <ul><li>Fibrinosuppurative consolidation – whole lobe </li></ul><ul><li>Rare due to antibiotic treatment. </li></ul><ul><li>~95% - Strep pneumoniae types 1,3,7& 2. </li></ul><ul><li>Four stages: </li></ul><ul><ul><li>Congestion. </li></ul></ul><ul><ul><li>Red Hepatization. </li></ul></ul><ul><ul><li>Gray Hepatizaiton. </li></ul></ul><ul><ul><li>Resolution. </li></ul></ul>
  • 19. Lobar Pneumonia:
  • 20. Lobar Pneumonia – Gray hep…
  • 21. Lung Abscess: <ul><li>Focal suppuration with necrosis of lung tissue </li></ul><ul><li>Strep, Staph & Gram negative & anaerobes </li></ul><ul><li>Mechanism: </li></ul><ul><ul><li>Aspiration </li></ul></ul><ul><ul><li>Post pneumonic </li></ul></ul><ul><ul><li>Septic embolism </li></ul></ul><ul><ul><li>Neoplasms </li></ul></ul><ul><li>Productive Cough, fever. </li></ul><ul><li>Clubbing </li></ul><ul><li>Complications: Systemic spread, septicemia. </li></ul>
  • 22. Lung Abscess:
  • 23. Lung Abscess:
  • 24. Lung Abscess - Chronic:
  • 25. Lung Fungal Abscess: Candida
  • 26. Normal Lung
  • 27. Normal Lung
  • 28. The only place where success comes before work is in a dictionary…! Vidal Sassoon

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