Patient: CT shows: symmetrical thorax, centered tracheal mediastinum, enlarged bilateral pulmonary hilum, narrowed bronchi with compression in both lungs, multiple enlarged lymph nodes in mediastinum and bilateral pulmonary hilum, multiple nodular soft tissue density shadow at the left interlobular pleura, and a small amount of fluid density shadow in bilateral thoracic cavity. Current physical status: left chest tightness, white sputum, chest feeling discomfort. In Shenyang a large inpatient treatment for half a month did not see significant improvement. Not in hand for the time being, and will send over in some days. Doctor: The most common causes of multiple lymph node enlargement in the mediastinal hilar lung include: tuberculosis, nodular disease, lymphoma. Their treatment options are: anti-tuberculosis treatment, hormone therapy, chemotherapy. The most effective diagnostic tool is mediastinoscopic mediastinal lymph node biopsy, and the treatment plan is based on the biopsy results. There are not many hospitals in China that perform mediastinoscopy, and the Department of Thoracic Surgery of Shanghai Pulmonary Hospital is one of the first units to perform mediastinoscopy.