Most of the nodules on the lungs that are metastatic foci are found during follow-up examinations, and thus most of them do not have obvious symptoms. When the metastases gradually increase, symptoms similar to those of lung cancer may appear.
Many malignant tumors tend to metastasize to the lungs, and thus should be reviewed regularly after treatment of malignant tumors. Most patients with small metastatic foci are found during chest CT examination at the time of review, which seldom causes symptoms.
When the metastatic foci gradually increase in size and cause serious damage to lung tissues, symptoms similar to lung cancer can appear, such as coughing, coughing up sputum, blood in sputum, etc. If vascular invasion occurs, it can also cause obvious hemoptysis, and when it invades the pleura, it can cause chest pain and pleural effusion.
Most of the small lung metastases of malignant tumors do not have obvious symptoms, and need to be combined with medical history, imaging, and even pathological examination to finally confirm the diagnosis. When obvious symptoms appear, the condition is often more serious, and it is recommended that the patient go to the hospital as soon as possible, so that a professional doctor can fully evaluate the patient and decide the next treatment plan.