Laser offers new hope for brain cancer

Neurosurgeons using lasers to treat brain cancer have discovered that the technique breaks down the blood-brain barrier, a finding that could lead to new treatment options for patients with the deadly disease.

"We were able to show that the blood-brain barrier is broken down for about four weeks after you do this laser therapy," says Dr Eric Leuthardt, a professor of neurosurgery at Washington University in St Louis.