Can blood tests accurately detect brain cancer?

The most important and only way to determine whether there is a tumor in the brain is to "take an X-ray". The scientific name of the "film" here is "imaging examination", including CT and MRI (also known as magnetic resonance imaging or nuclear magnetic resonance imaging), some with contrast agents and some without. The most concerned issue for patients is what kind of film is suitable for their disease. This article will give a brief introduction to commonly used imaging examinations in the most popular language.

Imaging examination: In addition to clinical symptoms, with the advancement of science, imaging examinations can quickly increase the accuracy of brain tumor diagnosis and are also very helpful for postoperative follow-up treatment. Imaging examinations include: Computed Tomography (CT), Magnetic Resonance Imaging (MRI), Electroencephalography (EEG) and cerebrovascular photography.
Biopsy: Although advances in imaging examinations have enabled physicians to often diagnose brain lesions through imaging examinations, in some cases a biopsy is necessary to confirm the pathological diagnosis, especially when a brain tumor is assessed to be inoperable. Biopsy surgery can help with subsequent treatment. Biopsy includes stereotactic biopsy and craniotomy biopsy.