Mass General Brigham Mar 11 2025 Occupational and environmental exposures can put specific groups of people at higher risk of cancer, including firefighters. A new study by investigators at Mass General Brigham examines a cancer rarely studied in firefighters: gliomas-a type of tumor that forms in the brain or spinal cord. Using glioma tumor samples from the University of California, San Francisco Adult Glioma Study, researchers looked for genetic mutational signatures, finding one that has