Why is it said online that hoarseness of lung cancer patients is the most obvious late symptom of lung cancer?

Hello, lung cancer patients are prone to mediastinal lymphatic metastasis, and swollen lymph nodes will compress the recurrent laryngeal nerve, leading to vocal cord paralysis and hoarseness, and choking when drinking water. Mediastinal lymph node metastasis is usually N2 or N3 in clinical stages, which belongs to stage 3, and the middle stage is advanced. In the advanced stage, cancer cells usually spread to other organs except the lungs. At present, conservative comprehensive treatment is recommended for the treatment of diseases. I hope the answer will help you.