My sister Katelyn was diagnosed with stage 4 glioblastoma in July 2021 where she underwent two craniotomy’s back to back to remove the tumor. And currently wears a Optune device which has helped keep the tumor from regrowing. She is the most incredible sister/human I’ve ever met. Even with everything she’s been through she stays so positive. Words cannot express the light Katelyn shines in our lives and she is living proof that she is not defined by her diagnosis.