Diagnosing Brain Tumors
Many people who call the Ivy Brain Tumor Center have already been diagnosed with a brain tumor, but need further tests to determine the type of tumor they have.
You may have had a physical exam to check a number of key indicators, including reflexes, coordination and pressure on optic nerves. Your doctor or an emergency room doctor may have ordered a diagnostic imaging test, such as an MRI or a CT scan.
Depending on the size and location of the tumor, diagnostic imaging may provide enough information for a neurosurgeon to remove the tumor. If more information is needed, a brain biopsy is done.
On-site lab for testing biopsies
A brain biopsy involves getting a sample of the brain-tumor tissue for a pathologist to examine.
Biopsies can sometimes be performed by a needle inserted through a small hole. Other times, a small part of the skull is surgically removed to obtain a sample of the tumor tissue.
Tumor samples are taken immediately to the on-site laboratory at the Ivy Brain Tumor Center, where they are examined by a neuropathologist. The neuropathologist determines whether a tumor is benign or malignant, and – if malignant – at what stage of brain cancer the tumor may be.
Diagnosing Brain Tumors
In the videos below, Dr. Greg Foltz of the Swedish Neuroscience Institute discusses different types of brain tumors, including benign and malignant tumors, and how brain tumors are diagnosed.
If you are from out of town, and would like to have the Ivy Brain Tumor Center review your test results, or for a second opinion, call us at 1-800-321-1733.
Contact Information
Ben and Catherine Ivy Center for Advanced Brain Tumor Treatment
550 17th AvenueSuite 540
Seattle, WA 98122
Phone: 206-320-2300
Fax: 206-320-8149
Map & Directions
Diagnosed with a Brain tumor?
The Ivy Brain Tumor Center has a multidisciplinary team of physicians, nurses and social workers who specialize in treating people with benign and malignant brain tumors.
Need a second opinion?
Call 206-320-2300 to make an appointment now.

Brain cancer is life-changing
Watch Dr. Greg Foltz video
Support Services
At the Ivy Center, patients and their families have access to a wide range of support services.
Counseling for Brain Tumor Patients and Families



