Notice: Users may be experiencing issues with displaying some pages on stanfordhealthcare.org. We are working closely with our technical teams to resolve the issue as quickly as possible. Thank you for your patience.
When diagnosing a brain tumor, it is also important to be able to directly examine the tissues of the tumor. This is done by extracting some of the tumor cells in a procedure called a biopsy. The biopsy is sometimes carried out in advance of surgery using only a needle to extract the cells under local anaesthesia. But most often, the biopsy is done at the same time that the neurosurgeon operates to remove the tumor.
Once the tumor cells are obtained for a biopsy, a neuropathologist can immediately examine them under an extremely powerful microscope to provide the medical team with a highly accurate description of the cells found in the tumor.
The more detailed and accurate a diagnosis you can receive, the more specialized the treatment can be, resulting in the most hopeful prognosis.
Clinical trials are research studies that evaluate a new medical approach, device, drug, or other treatment. As a Stanford Health Care patient, you may have access to the latest, advanced clinical trials.
Open trials refer to studies currently accepting participants. Closed trials are not currently enrolling, but may open in the future.