A biopsy is a procedure in which tissue samples are removed from the body by a needle or during surgery, for examination under a microscope to determine if cancer or other abnormal cells are present.
By examining and performing tests on the biopsy sample, pathologists and other experts can determine what kind of cancer is present, whether it is likely to be fast or slow growing, and what genetic abnormalities it may have. This information is important in deciding the best type of treatment. Open surgery is sometimes performed to obtain a biopsy, but in most cases, tissue samples can be obtained without open surgery using interventional radiology techniques.
Some biopsies can be performed in a doctor's office, while others need to be done in a hospital setting. Most biopsies require use of an anesthetic to numb the area and may require sedation.
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.