Pathology of Pneumonia Slide Transcript
Slide 1: The best way to make your dreams come true is to wake up... — Paul Valery
Slide 2: Pathology of Pneumonia Dr. Venkatesh M. Shashidhar Senior Lecturer in Pathology Fiji School of Medicine
Slide 3: Introduction: Daily10,000 liters of air - filtered..! Pneumonia: Inflammation of lung. Respiratory tract infections – commonest in medical practice. Enormous morbidity & mortality.
Slide 4: Etiology: Decreased resistance - General/immune Virulent infection - Lobar pneumonia Clearing mechanism Cough Reflex Mucosal Injury Low Alveolar defense Pulmonary edema Obstructions
Slide 5: Types: Viral Bacterial Mycoplasmal Fungal
Slide 6: Patterns of Pulmonary infections: Airway- Bronchitis, Bronchiectasis Parenchyma Pneumonia Bronchopneumonia Lobar pneumonia Lung abscess Tuberculosis
Slide 7: Bronchopneumonia Staph, Strep, Pneumo & H. influenza Patchy consolidation – not limited to lobes. Suppurative inflammation Usually bilateral Lower lobes common Complications: Abscess Empyema Dissemination
Slide 8: Broncho- pneumonia
Slide 9: Broncho- pneumonia
Slide 10: Broncho- pneumonia
Slide 11: Bronchopneumonia - Abscess formation
Slide 12: Bronchopneumonia:
Slide 13: Bronchopneumonia:
Slide 14: Bronchopneumonia - Abscess formation
Slide 15: Lung RSV Pneumonia:
Slide 16: Bronchopneumonia - CT
Slide 17: Bronchopneumonia - CT
Slide 18: Lobar Pneumonia: Fibrinosuppurative consolidation – whole lobe Rare due to antibiotic treatment. ~95% - Strep pneumoniae types 1,3,7& 2. Four stages: Congestion. Red Hepatization. Gray Hepatizaiton. Resolution.
Slide 19: Lobar Pneumonia:
Slide 20: Lobar Pneumonia – Gray hep…
Slide 21: Lung Abscess: Focal suppuration with necrosis of lung tissue Strep, Staph & Gram negative & anaerobes Mechanism: Aspiration Post pneumonic Septic embolism Neoplasms Productive Cough, fever. Clubbing Complications: Systemic spread, septicemia.
Slide 22: Lung Abscess:
Slide 23: Lung Abscess:
Slide 24: Lung Abscess - Chronic:
Slide 25: Lung Fungal Abscess: Candida
Slide 26: Normal Lung
Slide 27: Normal Lung
Slide 28: The only place where success comes before work is in a dictionary…! Vidal Sassoon
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