Patients with lung cancer presenting with supraclavicular lymph node metastasis usually have a mass that can be seen or felt in the supraclavicular region on the same side, with a hard texture, unclear borders and relatively fixed, especially with the tissue below the mass. This mass is not the same as the usual inflammation-induced enlarged lymph nodes, which are usually softer, with well-defined borders and good mobility. Other patients may experience pain, numbness, swelling and limited movement in the ipsilateral shoulder and upper limb. If lung cancer patients have the above symptoms, they should go to hospital urgently for ultrasound or CT for further examination. If puncture biopsy of lymph nodes can be done to obtain cytological or pathological diagnosis, the diagnosis can be more confirmed.