Stereotactic brain biopsy

Stereotactic brain biopsy is a common procedure that allows a neurosurgeon to diagnose a brain lesion. Performed in the operating room, the procedure involves the removal of a small piece of tissue, most commonly from the brain, with the goal of diagnosing an abnormality seen on an MRI or CT scan. Most of the biopsies are done with a fine needle and only require a small opening (burr hole) to access the intracranial cavity.