How does malignant tumor spread? 1. With the help of vascular tumors, there are not only cancer cells, but also very rich blood vessels. The formation of blood vessels provides rich nutrition for cancer cells, but also takes away some cancer cells. These cancer cells flow with the blood to any part and organ of the body, causing these parts to become cancerous.
2. Adjacent cancer cells are very aggressive cells. For the cells around cancer cells, cancer cells can easily kill them and replace them. In addition, the adhesion between normal cells is very strong, but for cancer cells, this performance will disappear, so cancer cells lose their adhesion, they will spread around and even cause nearby organs to be involved.
3, lymphatic vessels spread lymphatic vessels usually follow the blood vessels, vascular-rich cancer tissues, lymphatic vessels are naturally many, so cancer cells will follow the lymphatic vessels back. When they go to lymph nodes, they will stay here to breed and cause lymph nodes. When it continues to spread, it can spread to other organs of the body.
What harm does the spread of malignant tumor have? 1. Brain metastasis is common in small cell lung cancer and adenocarcinoma. Headache is the most common symptom, and vomiting mostly occurs when the headache is severe, which is manifested as jet vomiting; Visual impairment means that the tumor has affected the compression or invasion of the optic nerve. In addition to the above common symptoms, brain metastasis of lung cancer can also cause diplopia, paroxysmal melanosis, cataplexy, disturbance of consciousness, high blood pressure and slow pulse. In severe cases, brain hernia caused by tumor compression may lead to respiratory arrest and endanger the life of patients.
2. Bone metastasis Bone metastasis is not a direct cause that threatens the life of lung cancer patients, but if the tumor metastasizes to the body-bearing bones such as cervical vertebrae, thoracic vertebrae and lumbar vertebrae, it can cause serious consequences of paralysis.
3. Liver metastasis Liver metastasis is that cancer cells of primary lung cancer invade the liver through blood circulation and grow in the liver. Liver metastasis can be single or multiple nodular metastasis. The most common symptom is pain in the liver area, which is persistent swelling pain, and may be accompanied by loss of appetite, indigestion and other manifestations of impaired liver function.
The symptom of malignant tumor spread is 1. When there are some painless masses on the body surface, we must pay attention to them. There may be superficial lymph node metastasis. The most common site is the supraclavicular lymph nodes in the neck, followed by axillary and subgingival lymph nodes. If you have time, you can contact more and see if there are any new people recently.
2. Some patients have no obvious symptoms, but their bodies suddenly lose weight and the reasons are unknown. This is mainly due to the increase of tumor cells in the body, which consumes a lot of nutrients. If the normal diet suddenly drops, you should go to the hospital for review in time.
3. When the tumor recurs and metastasizes, there will be pain in different parts. For example, the tumor in patients with liver metastasis will cause dull pain in the right upper abdomen, and patients with thoracolumbar bone metastasis will have back pain. If you always feel pain in your back and abdomen and can't relieve it, you should go to the hospital for ct reexamination in time.