In addition to using an MRI to gauge the extent of brain cancer, doctors have found a way to monitor a chemical found only in tumor cells. This gives doctors a nuanced and fast way to gauge how a patient is responding to treatment. (WFAA)

Texans need the truth. Help us report it.

Become a member. Join today.

Choose an amount or learn more about membership.

Sarah Schroeder wrote about medicine and science for The Texas Tribune in 2016 while completing a master's in public health UT-Austin, where she studied health promotion, health communication, and health...