Consult a lung cancer expert, urgently! If possible, I will add points!

At present, the most important thing is to make a clear diagnosis before deciding the next treatment method and effect. When too little tissue is taken out by lymph node cell puncture, the left clavicle lymph node biopsy is a simple and small operation with no risk.

If it is tuberculosis, the treatment effect is still good. However, in my experience, the possibility of lung malignant tumor is high, cervical lymph node enlargement has appeared, and it is estimated that the opportunity for surgery has been lost.

If it is small cell lung cancer, with high malignancy and fast metastasis, liver and brain bone metastasis may occur, but it is still very sensitive to chemotherapy. As long as the economy can keep up, some people will still have a long life cycle.

Lung squamous cell carcinoma can also be treated with chemotherapy, but if there is no distant metastasis, surgery is the first choice.

The response of chemotherapy varies from person to person, which is related to the choice of chemotherapy drugs, symptomatic treatment and the patient's own physique.

For reference only, I hope your father will recover soon.