What does nasopharyngeal cancer blood screening test?

The blood screening for nasopharyngeal carcinoma mainly tests the level of Epstein-Barr virus (Epstein-Barr virus) antibodies. By checking the DNA level and specific antibodies of Epstein-Barr virus in the serum, potential nasopharyngeal carcinoma patients can be preliminarily screened. The detection methods for nasopharyngeal carcinoma include Epstein-Barr virus antibody detection, cytology and gene detection. It is necessary to combine clinical symptoms with other examination methods to further confirm the diagnosis.

1. EB virus antibody test: EB virus is closely related to nasopharyngeal carcinoma. Testing for specific EB virus antibodies (such as EBVVCA-IgA and EBVEA-IgA) in the blood can effectively screen people at risk of cancer. High levels of EB virus antibodies indicate a possible risk of nasopharyngeal carcinoma.

2. Serum EB virus DNA test: Detecting the EB virus DNA content in the blood through highly sensitive PCR technology can help evaluate the condition and treatment effect of nasopharyngeal carcinoma patients. This test can reflect the activity of the virus to a certain extent and is an important means of early detection of nasopharyngeal carcinoma.

3. Genetic testing: In recent years, the development of genetic testing technology has provided a new path for early screening of nasopharyngeal carcinoma. By detecting genetic variations related to nasopharyngeal carcinoma, it can provide a basis for early detection and prevention. However, genetic testing requires the interpretation of professional physicians and cannot be used alone as a basis for diagnosis.

Regardless of which of the above screening methods is used, medical evaluation and consultation are essential steps. Once blood screening indicates potential risks, it is necessary to seek medical attention in time and combine imaging examinations (such as MRI or CT) and pathological biopsy for diagnosis. Early detection and treatment of nasopharyngeal carcinoma can help improve the survival rate of patients, so regular physical examinations are particularly important, especially for high-risk groups. It is recommended that individuals with a family history of nasopharyngeal carcinoma or living in high-incidence areas pay attention to regular screening.