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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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