The content under this category focuses on various aspects of radiation therapy as a critical component of cancer treatment. It includes discussions on treatment methods for different types of cancers, including oral, breast, laryngeal, and pancreatic cancers. The materials also cover innovative techniques, such as MRI-based brachytherapy, and explore the roles of combinations of therapies, patient management strategies, and specific case studies that illustrate treatment effectiveness and outcomes. Relevant issues such as tumor characteristics and resistance are addressed throughout.