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What is the metastasis pathway of lung cancer at the initial stage?

What is the initial stage of lung cancer metastasis? Lung cancer metastasis is very strong, leading to its cure is very difficult, and the lung as a central organ of the respiratory system, once there is damage, the life of patients will be greatly harmed. Therefore, the treatment focus of lung cancer patients, in addition to clearing cancer cells, inhibition of lung cancer metastasis is also very important.

What are the main ways of lung cancer metastasis?

Renal and adrenal metastasis

Kidney and adrenal gland are the results of hematogenous metastasis in the late stage of lung cancer. About 17% - 20% of lung cancer patients have renal and adrenal metastasis. Patients are often asymptomatic. Some patients may have renal distension and pain, but rarely affect renal function.

Liver metastasis

Liver is also a common metastasis site of lung cancer, about 28-33% of lung cancer have liver metastasis. Liver metastasis is a kind of primary lung cancer, in which cancer cells fall off and invade the liver through blood circulation and grow in the liver. Liver metastasis can be single or multiple nodule metastasis. The most common symptom is pain in the liver region, which is persistent swelling pain, accompanied by anorexia, dyspepsia and other manifestations of liver function damage

Bone metastasis

About 50% of lung cancer patients will eventually have multiple bone metastases. In the early stage of bone metastasis, there are no symptoms. Bone isotope scanning can find the diseased bones. The symptoms of bone metastasis are related to the location and quantity of tumor metastasis. For example, chest pain caused by rib metastasis of lung cancer is mostly manifested as pain with definite tenderness points and limited chest wall. Spinal cord metastases cause pain in the middle of the back or the affected area, while bone metastases in the limbs or trunk cause localized pain in this area. Bone metastasis is not the direct cause threatening the life of lung cancer patients, but if the tumor is transferred to the body bearing bone, such as cervical spine, thoracic spine, lumbar spine and other parts, it can cause serious consequences of paralysis. Therefore, the patients with bone metastasis of lung cancer should be treated in time.

Brain metastasis

Headache, vomiting, visual disturbance, personality and temper change may be caused by intracranial hypertension or brain nerve damage caused by lung cancer metastasis to brain. Common in small cell lung cancer, adenocarcinoma type. Headache is the most common symptom, vomiting often occurs when headache is intense, characterized by jet vomiting; In addition to the common symptoms mentioned above, brain metastases of lung cancer can also appear recurrence, paroxysmal amaurosis, sudden collapse, disturbance of consciousness, increased blood pressure, slow pulse, severe cases can produce brain hernia due to tumor compression, resulting in respiratory arrest, endangering the life of patients. In addition, in recent years, due to the widespread application of brain CT examination in lung cancer patients, many asymptomatic patients with brain metastases have been found, which has won time for treatment. Therefore, brain CT should be regarded as routine examination in patients with lung cancer, in order to find brain metastasis as soon as possible.

Other site metastasis

In addition to the above common metastatic sites, the less common metastatic sites of lung cancer are skin, subcutaneous tissue, muscle, abdominal cavity, heart and so on. Such as transfer to the heart can appear chest tightness, palpitations and even shortness of breath, syncope, arrhythmia and other symptoms.

After reading the above content, what are the metastasis pathways of lung cancer in the early stage? This problem should be understood. More topics about respiratory health will be introduced in the following article. Welcome to check. Wish you a happy life!