The content delves into various aspects of cancer treatment through radiation oncology, covering techniques for diagnosis, including imaging and biopsies, as well as patient dosimetry and methods like brachytherapy. It discusses innovations in precision radiotherapy and the integration of immunotherapy, highlighting advancements such as MRI-guided treatments and the use of nanoparticles. The documentation also addresses complications, regulatory frameworks, and case studies like glioblastoma treatment outcomes, offering a comprehensive view of current practices and research in the field.