Tuberculosis
TB Bacterial infection caused by the germ Mycobacterium Tuberculosis
Mycobacterium Tuberculosis ©http://www. dental. washington
Most people can fight off the bacteria, however… More likely to contract TB when your immune system is suppressed
Bacteria is inhaled It implants itself in the alveolar surface of the lung (parenchyma)
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
©http://www. nlm. nih. gov/medlineplus/ency/images/ency/fullsize/19099 ©http://www.nlm.nih.gov/medlineplus/ency/images/ency/fullsize/19099.jpg
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
TB ©http://teaching. path. cam. ac
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
Early Case of TB ©http://images. google. com/imgres. imgurl=http://www
Moderate Case of TB © http://images. google. com/imgres
Advanced Case of TB ©http://images. google. com/imgres
Treatment A regimen of antibiotics that may last 6 to 9 months
https://www.youtube.com/watch?v=XBFCsglP2Xo
TB Slide ©http://medsci.indiana.edu/c602web/602/c602web/scans/76f.jpg
Peribronchial Granuloma ©http://images. google. com/imgres
TB Granule with Preserved Alveolar Tissue ©http://images. google