Dr. Rishan T. S

Dr. Rishan T. S is a Senior Consultant Radiation Oncologist at Iswarya Cancer Centre, Iswarya Hospital, OMR, Chennai, with over 12+ years of experience in precision radiation oncology. He specializes in advanced radiotherapy techniques including SRT, SBRT, IMRT, IGRT, and VMAT delivered through modern linear accelerator–based platforms. His clinical practice focuses on high-precision, image-guided, and motion-managed radiotherapy aimed at maximizing tumour control while minimizing damage to surrounding healthy organs. Dr. Rishan has extensive expertise in treating complex cancers and selected benign tumours using modern radiotherapy approaches such as stereotactic treatments, adaptive planning, and motion management technologies. He has trained and worked at leading cancer institutions including Cancer Institute (WIA), Apollo Proton Cancer Centre, and Gleneagles Health City, and is actively involved in clinical research, academic teaching, and multidisciplinary cancer care.

• 1AROI – Association of Radiation Oncologists of India
• 2ICRO – Indian College of Radiation Oncology
• 3ISO – Indian Society of Oncology
• 4IBSCON – Indian Brachytherapy Society
• 5IMSOS – Indian Musculoskeletal Oncology Society
• 6ISNO – Indian Society of Neuro-Oncology

• 1Author of multiple peer-reviewed publications in national and international oncology journals
• 2Contributor to textbook chapters in radiation oncology
• 3Peer reviewer for leading international oncology journals
• 4Presented research at national oncology conferences and academic forums
• 5Active participant in clinical research and evidence-based oncology practice

• Expertise in precision radiotherapy using VMAT, IMRT, IGRT and stereotactic techniques
• Experience in motion-managed thoracic and breast radiotherapy using DIBH and ABC
• Involved in advanced stereotactic treatments for brain metastases and extracranial lesions
• Experienced in complex multidisciplinary oncology care planning
• Academic faculty and speaker at national oncology meetings including AROI, YROC and IMSOS

• 1Advanced training in Image-Guided Proton Beam Therapy (Pencil Beam Scanning) – Apollo Proton Cancer Centre
• 2Specialized expertise in modern radiation techniques including IMRT, IGRT, VMAT, SBRT, and Brachytherapy
• 3Training in Motion Management techniques for precision radiation delivery
• 4Certification in Essentials of Palliative Care
• 5Academic and clinical training experience at Cancer Institute (WIA)