Flow Chart For Tuberculosis
"TUBERCULOSIS
Mycobacterium tuberajbsis \
Droplet nuclei in air currents
Inhalation into respiratory tract Organisms deposited in lung periphery
Inflammatory response Polymorphonuclear leukocytes accumulate
Polymorphonuclear leukocytes replaced by macrophages that engulf bacteria
Formation of g ia nt g ra nu la r eel Is that surround foreign cells
Necrosis within giant cell \
Calcification of lesion Formation of granuloma (tubercle)
Scar tissue encapsulates tubercle to separate it from body
Death of microorganisms
Sensitization of T lymphocytes Positive tuberculin skin test
Bacilli spread throughout lung Caseous necrosis
Clinical tuberculosis
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