Clinical Roundup

Clinical Roundup

New genetic biomarker flags aggressive brain tumors, Mayo Clinic study finds

Clinicians typically classify meningiomas—the most common type of brain tumor—into three grades, ranging from slow-growing to aggressive. But a new multi-institutional study suggests that appearances may be deceiving. If a tumor shows activity in a gene called telomerase reverse transcriptase, it tends to recur more quickly, even if it looks low-grade under the microscope.