What is infiltrate TB?
The first demonstrable lesion of post-primary TB is a small focus of macrophages in alveoli, the early infiltrate, Figure 1 (10). This is a lobular pneumonia that spreads through bronchi, not the blood or lymphatics as does primary TB.
What is Post TB bronchiectasis?
Bronchiectasis: This is a common finding in post TB sequelae and it occurs due to destruction and fibrosis of the lung parenchyma with irreversible secondary bronchial dilatation. 9 It can occur with both primary or secondary exposure. Bronchiectasis located in upper lobe is highly suggestive of a tuberculous origin.
How does reactivation tuberculosis occur?
Reactivation TB may occur if the individual’s immune system becomes weakened and no longer is able to contain the latent bacteria. The bacteria then become active; they overwhelm the immune process and make the person sick with TB. This also is called TB disease.
What causes tuberculosis TB?
Tuberculosis (TB) is caused by a bacterium called Mycobacterium tuberculosis. The bacteria usually attack the lungs, but TB bacteria can attack any part of the body such as the kidney, spine, and brain. Not everyone infected with TB bacteria becomes sick.
What is disseminated TB?
Disseminated tuberculosis is a mycobacterial infection in which mycobacteria have spread from the lungs to other parts of the body through the blood or lymph system.
Can bronchiectasis lead to TB?
Bronchiectasis occurs frequently in association with pulmonary tuberculosis and is caused primarily by tuberculous bronchitis. It is common in all types of tuberculosis, especially in the fibroid lesion stage. It may occur with active tuberculosis and become part of the tuberculous picture.
Can active TB become latent?
After an initial infection, the bacteria that causes TB often becomes dormant in the body. But if left untreated, it can become active and infectious. After an initial infection, the bacteria that causes TB often becomes dormant in the body.
Can latent TB turn to active TB?
However, latent TB bacteria can ‘wake up’ and become active in the future, making you ill. This can happen many years after you first breathe in TB bacteria. Latent TB bacteria are more likely to wake up if you experience lifestyle stresses or other illnesses that weaken your immune system.
What are the features of infiltrative pulmonary tuberculosis?
Features of infiltrative tuberculosis. It is important that the condition of the cells of the immune system. A sick person can be contagious if there is an open form of tuberculosis. In this form of pulmonary tuberculosis in lung tissues formed infiltrates. First, they have a diameter of about 3 cm, then they can grow.
Who is most likely to develop infiltrative tuberculosis?
People with infiltrative tuberculosis are mostly adults, usually young. The likelihood of developing infiltrative tuberculosis increases with poorly organized detection of earlier forms of the disease. Infiltrative tuberculosis is diagnosed in 65-75% of newly diagnosed patients with pulmonary tuberculosis.
Where is the best place to treat infiltrative pulmonary tuberculosis?
In the treatment of infiltrative pulmonary tuberculosis is necessary to consider the possibility of infection of others. To avoid this, the therapy should be carried out in TB dispensaries. Most often they are located on the outskirts of the city. Important place in the treatment is increasing immunity.
When does calcification of pulmonary nodes occur in tuberculosis?
Calcification of nodes is seen in 35% of cases 2. When a calcified node and a Ghon lesion are present, the combination is known as a Ranke complex. Post-primary pulmonary tuberculosis, also known as reactivation tuberculosis or secondary tuberculosis occurs years later, frequently in the setting of a decreased immune status.