Increased NSE alone is not a specific diagnosis of cancer, and inflammatory infections can also lead to high NSE. significantly increased NSE is seen in small cell lung cancer, neuroblastoma, medullary thyroid cancer, pancreatic endocrine tumor, and other diseases. One physical examination result with mildly high NSE, no clinical symptoms, and no other abnormalities found on physical examination is recommended for continued monitoring and regular checkups. If there is inflammation in the body and NSE is mildly elevated, it can be rechecked after treatment. if NSE is elevated and accompanied by lung nodules, further biopsy should be performed to exclude malignant tumor. nse is an antigen associated with small cell lung cancer, the normal value is 0-15ng/ml, and the diagnosis is confirmed by biopsy. relax, pay attention to a balanced diet and nutrition, and observe regularly.