Best Colon cancer stage 4 doctors in Istanbul: TOP 5 doctors

Professor Yıldırım has published over 80 scientific papers and is a specialist in cancer immunotherapy and targeted therapies at Anadolu Medical Center.

• Holds a professor title from Halic University and is an active lecturer
• Authorized by ESMO – one of Europe's leading oncology bodies
• Fellowship-trained in immunotherapy clinics in London and Israel
• Over 21 years of experience as a medical oncologist

Dr. Saban Sec is a medical oncologist with experience at leading hospitals, including Haseki Training and Research Hospital, Prof. Dr. Cemil Taşcıoğlu City Hospital, and Bahçelievler Medikalpark Hospital. He currently represents specialist physicians in the Turkish Medical Oncology Association. He is also a member of the Istanbul Medical Chamber and the Turkish Medical Oncology Association.

Dr. Sec treats breast, lung, gastrointestinal, prostate, urogenital, head and neck cancers, as well as sarcomas and rare tumors. He has published many peer-reviewed articles on cancer prognosis, treatment outcomes, and survival rates. His research includes studies with large patient groups, such as 138 patients with HER2-positive metastatic gastric cancer. Dr. Sec focuses on prognostic factors and treatment responses in different cancers. He is dedicated to improving cancer care.

Dr. Ercan Ozden is a specialist in internal medicine and medical oncology. He earned his medical degree and completed his residency at Istanbul University, Cerrahpaşa Faculty of Medicine. He later received a subspecialty in medical oncology at Kocaeli University Faculty of Medicine from 2016 to 2020.

Dr. Ozden has worked in medical oncology at Şırnak State Hospital. He has also served as an internal medicine specialist at Bağcılar Private Safa Hospital and Küçükçekmece Batı Bahat Hospital. He has extensive clinical experience in both internal medicine and oncology.

Dr. Rahib Hasanov is a medical oncologist. He graduated from Istanbul University Cerrahpaşa Faculty of Medicine (1999–2005). He completed an internal medicine residency (2009–2013) and a medical oncology fellowship at Marmara University (2015–2018). He also completed an observership at Houston Methodist Hospital (2006–2007).

He focuses on personalized oncology. His treatments include immunotherapy, targeted therapy, and novel agents. His clinical interests include gastrointestinal, breast, lung, and genitourinary cancers.

He attends national and international conferences. He welcomes patients from Turkey, Azerbaijan, Montenegro, Georgia, Uzbekistan, the Middle East, Europe, and the United States.

Assoc. Prof. Atakan Topçu, M.D., is a medical oncologist at Medipol University and Medipol Acıbadem Regional Hospital. He treats solid tumors, including lung, breast, colorectal, gastric, and neuroendocrine cancers. His work also covers targeted therapies, immunotherapy, geriatric oncology, and cancer-related malnutrition, cachexia, and sarcopenia.

He has authored more than 50 peer-reviewed papers. Recent work includes a 2024 Frontiers in Medicine study on geriatric syndromes and a 2023 Future Oncology paper on sarcopenia and anxiety in lung cancer. He has also published on the CONUT score in breast cancer and on malnutrition in HER2-negative metastatic gastric cancer.

Dr. Topçu serves on the Editorial Board of BMC Cancer. He is a member of the Turkish Society of Medical Oncology, ESMO, and the Turkish Geriatrics Society. Education and training: M.D., Uludağ University; residency in Internal Medicine, Marmara University; fellowship in Medical Oncology, Bezmialem Vakıf University.