Lung metastases

It is quite common for malignant tumors that originate in other parts of the body to metastasize to the lungs via the blood or lymphatics. According to statistics, about 20-30% of the cases of death from malignant tumors have lung metastases. The time at which lung metastases occur in malignant tumors varies from day to night. Most cases metastasize within 3 years after the appearance of the primary cancer. There are also cases that last more than 10 years, but there are also a few cases where lung metastases are detected earlier than the primary tumor. . The primary malignant tumors that metastasize to the lung are mostly from the breast, bones, digestive tract, and urogenital system. Most lung metastatic tumors are multiple lesions that spread across the lungs on both sides, with different sizes and uniform density. There is no effective treatment for these advanced cancer cases. In a few cases, only a single isolated metastatic lesion in the lung can be considered for surgery.