Fluid in the lungs.

The clinical manifestation of pulmonary effusion is quite different, which is closely related to the scope of atelectasis and the cause of atelectasis. One atelectasis is often accompanied by obvious dyspnea. Physical examination often finds changes such as chest deformation, respiratory sound disappearance, percussion sound, trachea displacement to the affected side, etc. However, the symptoms of localized atelectasis may not be obvious, and the clinical signs are not typical. Therefore, although there is no pathological change, it is necessary to continue examination and treatment. If you are unwilling to do tracheal examination, you can also review chest X-ray and chest CT scan at the same time of treatment, and compare several images to find out the cause, so you can take corresponding treatment methods. Pulmonary effusion indicates that there are obvious pathological changes in the lungs. If pulmonary effusion is not treated in time, it will affect the respiratory function of the patient. There may be two reasons for right atelectasis. The first is due to bronchial obstruction, thick mucus and inflammatory exudate blockage, and the second is due to external bronchial obstruction, which can be caused by lymph node enlargement.