What are the symptoms of early and late stage lung cancer

Lung cancer is a disease name used in both Chinese and Western medicine. The main symptoms are as follows:

Early stage lung cancer, especially peripheral lung cancer, often has no symptoms and is mostly discovered during chest X-ray examination. When the tumor grows in the larger bronchi, irritating coughs often occur, which can easily be mistaken for colds. Another common symptom is bloody sputum, usually with blood spots, blood streaks or intermittent small amounts of hemoptysis; some tumors block the larger bronchi, and patients may experience chest tightness, wheezing, shortness of breath, fever and chest pain.

When advanced lung cancer compresses or invades adjacent organs and tissues or metastasizes to distant places, the following signs may occur: ① compression or invasion of the phrenic nerve, causing paralysis of the ipsilateral diaphragm; ② compression or invasion of the recurrent laryngeal nerve, causing paralysis of the vocal cords and hoarseness; ③ compression of the superior vena cava, causing venous distension in the face, neck, upper limbs and upper chest, edema of subcutaneous tissue, and increased venous pressure in the upper limbs; ④ invasion of the pleura, which may cause pleural effusion, often bloody; ⑤ cancer invades the mediastinum, compresses the esophagus, and may cause dysphagia; ⑥ lung cancer at the top of the upper lobe, in a few cases of lung cancer, due to the production of endocrine substances by the cancer, clinically presents non-metastatic systemic symptoms: such as osteoarthritis syndrome (clubbed fingers, osteoarthritis, periosteal hyperplasia, etc.), Cushing syndrome, etc. These symptoms may disappear after the removal of lung cancer. .

The spread and metastasis of lung cancer mainly occur in the following ways:

(1) Direct spread: After lung cancer is formed, the tumor grows along the bronchial wall into the bronchial cavity, which may cause obstruction of the bronchial cavity.

(2) Lymphatic metastasis: This is a common route of metastasis. After lung cancer invades the chest wall or diaphragm, it can metastasize to the axillary or upper abdominal para-aortic lymph nodes.

(3) Hematogenous metastasis: It is a late manifestation of lung cancer.