Brain Tumors: What Are They? Where Do They Come From? Forward arrow iconAn arrowing pointing forward, usually indicating forward movement, or the ability the share something via social media. Close iconAn icon showing an uppercase letter "X", indicating that this will close the current element. Share Facebook iconAn icon representing the Facebook social media site. Twitter iconAn icon representing the Twitter social media site. LinkedIn iconAn icon representing the social media service LinkedIn. Printer iconAn icon showing a printer, indicating the ability to print the associated media. Print Video9:00Neuro-oncologist Lisa DeAngelis says multidisciplinary input is critical to giving patients with brain tumors the safest and most-effective treatments.