Light-Activated therapy shows promise for tumor control without surgery

This study follows people who have received photodynamic therapy (PDT) for various cancers, including head and neck, lung, and skin tumors. PDT uses a light-sensitive drug and a special light to destroy cancer cells while sparing healthy tissue. Researchers will review medical records to track survival, tumor recurrence, and quality of life over time. The goal is to better understand how well PDT works and how it affects organ function.