Metastasis of lung cancer

summary

Some time ago, I kept coughing and often felt chest pain. When I went to the hospital, I was found to have lung cancer. The hospital emphasized that lung cancer should pay attention to the metastasis of cancer cells. Now let me talk about the metastasis routes of lung cancer.

Metastasis of lung cancer

First, local direct spread. This is mainly transmitted directly through cancer. After the occurrence of the cancer in the bronchial wall, it can grow into the bronchial lumen, resulting in stenosis or complete obstruction of the lumen. When the tumor grows out of the bronchus, it invades the lung tissue, then spreads and invades the adjacent organs and tissues. Central type lung cancer can compress or invade lymph, blood vessels, nerves and various organs and tissues in mediastinum after spreading into hilum and mediastinum.

The second is hematogenous metastasis. The occurrence of this kind of metastasis indicates that the patients with lung cancer have reached the advanced stage, and it is an important means of lung cancer metastasis. Undifferentiated carcinoma may present early hematogenous metastasis. The blood metastasis of adenocarcinoma is more common. Hematogenous metastasis of advanced squamous cell carcinoma is not uncommon. The most common sites of metastasis are liver, bone, adrenal gland, kidney and brain.

Third, lymphatic metastasis. In cases of bronchial lung cancer, this kind of diffusion is often seen in cases. Undifferentiated small cell carcinoma (NSCLC) can metastasize through lymph nodes at an early stage, and squamous cell carcinoma (SCC) is very common. Adenocarcinoma often metastasizes through blood, but lymphatic metastasis may also occur. Through the lymphatic ducts around the bronchi and pulmonary vessels, the cancer cells first invade the adjacent lung segments or lobes, and the parabronchial lymph nodes. Then, according to the location of the lung cancer, they reach the hilar, subcarina of trachea, mediastinum, paratracheal lymph nodes, and then the supraclavicular, anterior scalenus and cervical lymph nodes.

matters needing attention

Cancer cells are very easy to spread, lung cancer patients should pay special attention to the spread of the situation, at this time the general condition is more serious, lung cancer cells can probably transfer through the above three ways, very harmful, patients should be very careful, problems and actively communicate with doctors.