Johns Hopkins neurosurgeon, Jon Weingart, M.D., examines whether new techniques can allow better monitoring of brain tumors. 

Topics discussed:
1. Cell DNA gets shed (0:32)
2. Enrolled over 30 patients (1:32)
3. Tumors near spinal fluid space (2:31)
4. Chordoma detection (3:28)
5. Thank you to our research participants (4:30)
6. Sample taken during surgery(5:35)
7. Needs validation (6:35)
8. Every week we have a question (7:28)
9. Trial where DNA is completely analyzed (8:29)
10. Using a targeted therapy (9:17)