For generations, the thymus was dismissed as a vestige of childhood immunity, quietly ignored as radiation oncologists aimed their treatments at lung tumors. A new study from Harvard and Mass General Brigham now suggests that this collective forgetting carried a hidden cost: patients whose still-functional thymus received unintended radiation during non-small cell lung cancer treatment faced dramatically higher rates of metastasis and death. The finding invites medicine to reconsider what it means to protect a patient — not merely from disease, but from the unintended consequences of the cure
Thymus radiation exposure linked to worse lung cancer outcomes in new study
Lung cancer patients with healthy thymus tissue face significantly increased risk of cancer spread and death when thymus receives unintended radiation exposure during treatment.