1. Tuberculosis

2. TB
Bacterial infection caused by the germ Mycobacterium Tuberculosis

3. Mycobacterium Tuberculosis ©http://www. dental. washington

4. Most people can fight off the bacteria, however…
More likely to contract TB when your immune system is suppressed

5. Bacteria is inhaled
It implants itself in the alveolar surface of the lung (parenchyma)

6. Latent TB infection: person has no signs or symptoms and cannot transmit the infection
If it becomes active, they will become sick and contagious
It is easier to treat latent TB than active TB

7. ©http://www. nlm. nih. gov/medlineplus/ency/images/ency/fullsize/19099©

8. Isolates bacterium, necroses, calcifies Problem?
If the body cannot destroy the bacteria, it may wall it off with scar tissue
Your body fibroses around the bacteria
Isolates bacterium, necroses, calcifies
Problem?
Lost lung capacity and nodules (tubercles) form in lung

9. TB ©http://teaching. path. cam. ac

10. Signs and Symptoms Bad cough (lasting at least 3 weeks) Weight loss
Coughing up blood with mucus
Weakness or fatigue
Fever and chills
Night sweats

11. Early Case of TB ©http://images. google. com/imgres. imgurl=http://www

12. Moderate Case of TB © http://images. google. com/imgres

13. Advanced Case of TB ©http://images. google. com/imgres

14. Treatment
A regimen of antibiotics that may last 6 to 9 months

16. TB Slide ©http://medsci.indiana.edu/c602web/602/c602web/scans/76f.jpg

17. Peribronchial Granuloma ©http://images. google. com/imgres

18. TB Granule with Preserved Alveolar Tissue ©http://images. google