Multiple small lymph node shadows are seen in the mediastinum as a result of a CT scan, which may be due to bacteria and tuberculosis, among other causes. Multiple small lymph node shadows seen in the mediastinum may be due to acute or chronic inflammation caused by bacteria that can affect the lymphatic tissues, and nonspecific inflammation of the lymph nodes may occur, which can lead to lymph node enlargement.CT findings show multiple small lymph node shadows seen in the mediastinum, which can be treated with medications such as ceftriaxone, cefoperazone, and so on. Multiple small lymph nodes seen in the mediastinum may be caused by tuberculosis. Mycobacterium tuberculosis invades the lymph nodes and causes lymphatic tuberculosis, which results in swelling of lymph nodes around the blood vessels, and the CT result shows multiple small lymph nodes seen in the mediastinum, which can be treated with drugs such as rifampicin, pyrazinamide, and so on. Multiple small lymph node shadows in the mediastinum may be caused by other diseases, such as lymphoma, mediastinal swelling, mediastinal inflammation, etc. The cause of the disease needs to be clarified and then treated. Therefore, patients whose CT results show multiple small lymph nodes in the mediastinum should go to the hospital as soon as possible for examination and actively cooperate with the doctor for treatment after the cause of the disease is clarified.