In clinical practice, patients with lymph nodes in the supraclavicular fossa are often examined, and the specific examination methods generally include empirical visualization and palpation, lung CT examination, and ultrasonography, as follows: 1. Visualization and palpation by experience: larger supraclavicular lymph nodes can actually be seen, and smaller ones can also be judged by hand touch, which is the most common way to determine whether there are enlarged lymph nodes This is the most common way to determine whether there are swollen lymph nodes; 2. Pulmonary CT examination: when patients undergo lung CT examination, they can routinely scan this area of the supraclavicular fossa, and if the lymph nodes in this area appear to be enlarged, they can be seen on imaging; 3. Ultrasound examination: ultrasound examination is performed for locally enlarged lymph nodes, and the purpose of ultrasound examination at this time is to determine the size and shape of the lymph nodes and, in this case, to perform puncture to determine the nature of the swollen lymph nodes. Regardless of the type of examination, the presence of enlarged lymph nodes in the supraclavicular fossa is something that needs to be treated with caution, as it may indicate the growth of a tumor in the surrounding organs.