Small nodules in the right upper lung, while the other lung fields are clear, firstly, consider the proliferative foci left after the healing of tuberculosis, this kind of lesion is stable and does not need any treatment. Secondly, it is not yet possible to completely exclude neoplastic lesions, and it is difficult to confirm the diagnosis at present, and follow-up is recommended.

Extended information:

Tuberculosis is a chronic infectious disease caused by Mycobacterium tuberculosis, which can affect many organs, with tuberculosis infection of the lungs being the most common. The person who excreted the bacillus is its important source of infection. The human body does not necessarily develop disease after infection with Mycobacterium tuberculosis, but may cause clinical morbidity when resistance is lowered or cell-mediated metamorphosis is increased. If diagnosed in time and treated appropriately, most cases can be cured clinically.

Aetiology:

Tuberculosis belongs to the genus Mycobacterium in the order Actinomycetes and the family Mycobacteriaceae, and is an acid-resistant bacterium with pathogenicity. Mainly divided into human, cattle, birds, rats and other types. The human pathogenicity is mainly human-type bacteria, cattle-type bacteria are rarely infected. Resistance of tuberculosis bacteria to drugs can be formed by the development of innate drug-resistant bacteria in the colony, or due to the use of an anti-tuberculosis drug alone in the human body and the faster development of resistance to the drug, i.e., the acquisition of drug-resistant bacteria. Drug-resistant bacteria can cause difficulties in treatment and affect the efficacy of therapy.

Reference:Tuberculosis-Baidu Encyclopedia