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Flashcards in Pathology Deck (12):
1

Pneumonia

Infection involving the distal airspaces usually with inflammatory exudation

2

Classifications of pneumonia (3)

By clinical setting
By organism
By morphology

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Organisms causing pneumonia

Virus
Bacteria
Chlamdyia, mycoplasma
Fungi

4

Viruses causing pneumonia

Influenza
Parainfluenza
Measles
Varicella-zoster
Respiratory syncytial virus

5

Lobar pneumonia

Confluent consolidation involving a complete lung

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Pathology of pneumonia (4)

Exudation of fibrin-rich fluid
Neutrophil infiltration
Macrophage infiltration
Resolution

7

Complications of pneumonia (4)

Organisation (Fibrous scarring)
Bronchiectasis
Abscess
Empyema

8

Bronchopneumonia

Infection starting in airways and spreading to adjacent alveolar lung

9

Bronchiectasis

Abnormal fixed dilatation of the bronchi

10

Pathology of tuberculosis

Delayed Type IV hypersensitivity (granulomas with necrosis)

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Primary tissue change in TB

Ghon focus (small lesion) in periphery of mid zone of lung
Large hilar nodes (granulomatous)

12

Secondary tissue changes in TB

Fibrosing and cavitating apical lesion