Best Sigmoid adenocarcinoma doctors in Istanbul: TOP 30 doctors

Professor Bülent Karagöz specializes in tumor biology and immunotherapy – key areas for advanced sigmoid adenocarcinoma treatment at Anadolu Medical Center.

• 33 years of experience in medical oncology with focus on targeted therapies
• Head of Medical Oncology at GATA Haydarpaşa Training Hospital
• Published 40+ papers on cancer research
• Professor at Istanbul Okan University Faculty of Medicine
• Member of Turkish Medical Oncology Association

Dr. Eda Tanrikulu specializes in medical oncology for sigmoid adenocarcinoma at Anadolu Medical Center, with extensive training at top Turkish universities.

• Trained in medical oncology at Marmara University
• Ranked 3rd in Turkey's minor specialty exam in 2013
• Former head of medical oncology at Haydarpaşa Numune Training and Research Hospital
• Involved in international clinical studies in oncology

Specializes in gastrointestinal cancers with training at Hacettepe University Cancer Institute and MD Anderson Cancer Center.

• Experienced in treating various cancers including sigmoid adenocarcinoma
• Trained at one of Turkey's leading medical schools, Hacettepe University
• Fellowship at prestigious MD Anderson Cancer Center in the US
• Works at Hisar Hospital Intercontinental, a recognized healthcare provider

Prof. Kivanc Derya Peker specializes in complex gastrointestinal surgeries, with over 400 pancreatic and gastric cancer procedures performed at Hisar Hospital Intercontinental.

• Trained at Mayo Clinic in Hepatopancreatobiliary Surgery
• Founder of the Hepatopancreatobiliary Surgery unit at Bakirkoy Dr. Sadi Konuk Hospital
• Expert in liver cancer surgery and endoscopic treatments
• Holds a doctorate in aging and stem cell treatments

Dr. Banu Atalar is a board-certified radiation oncologist (Türkiye, 2004). She is a Full Professor at Acibadem MAA University (2018–present) and a clinician at Anadolu Medical Center (2026–present). She trained at Istanbul and Cerrahpaşa. In 2011, she completed a Stanford clinical research fellowship in stereotactic radiosurgery. Her practice focuses on CNS, thoracic, and GI tumors. About 75% of her care involves SRS and MR‑guided adaptive SRS.

Her honors include the ASCO IDEA award (2004), the IASLC International Mentorship Award (2018), and H.FACR (2025). She has 72 international peer‑reviewed publications. Her leadership roles include President of the Turkish Society for Radiation Oncology (2025–27) and Chair of the ESTRO National Societies Committee (2024–27). She served on the ASCO Resource‑Stratified Guidelines Committee (2013–18) and on RSS meeting and nomination committees. She organized national congresses (2023, 2025) and has been an invited speaker at major meetings.

Prof. Hüseyin Baloğlu is a pathology specialist at Anadolu Medical Center in Gebze, Kocaeli, Turkey. He focuses on molecular pathology, surgical pathology, and tumour biopsy and diagnostics.

Education and accreditations: MD, GATA Medical School (1986). Pathology specialty training, GATA (1992). Associate Professor (Doçent), GATA (2004). Visiting scholar at Albert Einstein College of Medicine (New York) and Heidelberg University.

Achievements: author of over 600 peer‑reviewed publications. Holds a patent in molecular diagnostics for thyroid cancer. Leads liquid biopsy and precision oncology services.

Prof. Sezer Sağlam specializes in gastrointestinal oncology with over 27 years of experience of experience, currently practicing at Gayrettepe Florence Nightingale Hospital.

• Professor in medical oncology since 2016
• Fellowship-trained at Istanbul University
• Member of ESMO, ASCO, and ENET
• Expert in gastrointestinal oncology cases

Dr. Yahya Ozel brings 31 years of experience of surgical expertise, with advanced training in Tokyo University's Hepato-Biliary-Pancreatic Surgery division.

• Specializes in minimally invasive and robotic surgery techniques
• Certified in surgical endoscopy with Turkish Surgical Proficiency
• Academic faculty member training future surgeons
• Works at Estexper Clinic with ERCP and surgical endoscopy experience

Professor Doctor Sefik Igdem specializes in radiation oncology, with a focus on head and neck cancers at Gayrettepe Florence Nightingale Hospital.

• Over 30 years of experience of experience in radiation oncology
• Expert in conformal treatments and advanced technologies like Truebeam Stx
• Professor at T.R Demiroğlu Bilim University
• Trained at Istanbul University's prestigious Cerrahpaşa Faculty of Medicine

Abdullah Sakin leads the Medical Oncology Department at Medipol Bahçelievler Hospital, specializing in advanced treatment protocols.

• Head of Medical Oncology at Yüzüncü Yıl University Faculty of Medicine
• Trained at Istanbul Okmeydanı Training and Research Hospital in Medical Oncology
• Specialist in Internal Medicine with extensive clinical experience

Professor Yesim Yildirim specializes in cancer immunotherapy and targeted therapies, with over 22 years of experience of clinical experience at Anadolu Medical Center.

• Certified ESMO specialist with advanced training in immunotherapy
• Authored over 80 scientific publications on oncology
• Professor at Halic University, training future oncologists
• Member of European Society of Medical Oncology

The doctor is an ECFMG and ESMO-certified medical and breast oncologist with over 20 years of experience, specializing in solid cancer, breast cancer, colorectal, and lung cancer treatment. Since 2016, the doctor has been a medical oncology specialist at Anadolu Medical Center.

The doctor graduated from Gülhane Military Medical Academy with a degree in general medicine and completed specialties in internal and medical oncology. The doctor has been a professor and associate professor at Gülhane Military Medical Academy, contributing significantly to medical education.

With over 110 papers on cancer management, the doctor is a member of several prestigious oncology organizations.

Dr. Ayhan Erdemir specializes in pancreatic cancer at Anadolu Medical Center, with extensive experience in general surgery since 2006.

• Trained in general surgery at Dr. Lütfi Kırdar KEAH
• Completed da Vinci Robotic Surgery training in 2014
• Assistant professor at Maltepe University Medical School

Dr. Mehmet Doğu Canoğlu is a radiation oncologist. He graduated from Kocaeli University Faculty of Medicine. He completed his residency in radiation oncology at Kocaeli University from 2006 to 2012.

He completed his compulsory service at Diyarbakır Training and Research Hospital. He then worked at Bağcılar Training and Research Hospital and at Medipol Mega University Hospital from 2015 to 2017. Since 2017, he has been a radiation oncologist at Anadolu Medical Center.

Professor of Medical Oncology specializing in gastrointestinal cancers – Dr. Saglam leads the department at Gayrettepe Florence Nightingale Hospital.

• Over 29 years of experience of focused experience in gastrointestinal oncology
• Fellowship-trained at Istanbul University Oncology Institute
• Active member of ESMO and ASCO – leading global oncology societies
• Provides personalized treatment plans for complex cases

The doctor graduated from Ankara University Medical School and completed residency training in internal medicine at Ankara GATA Medical School. Specializing in medical oncology and hematology, the doctor completed a clinical fellowship in the USA. A pioneer in Turkey, the doctor was part of the team that performed the first bone marrow transplantation in the country. The doctor has served as a visiting lecturer at prestigious institutions in London and Switzerland. Holding the European Medical Oncology Certificate, the doctor is a founding member of both The Turkish Society of Medical Oncology and the Turkish Oncology Group. The clinical focus includes breast, gastrointestinal, lung cancers, lymphomas, and myeloma.

Dr. Yildiz specializes in rare neuroendocrine and gastroenteropancreatic tumors, with extensive research published in top medical journals.

• 76 years of experience focusing on complex gastroenteropancreatic neuroendocrine cases
• Published 17+ peer-reviewed studies including landmark MODEST research
• Skilled in managing treatment side effects like paraneoplastic disorders
• Faculty at Medipol Mega – one of Istanbul's leading teaching hospitals

Associate Professor since 2016, Dr. Ozatli brings academic rigor to treating gastrointestinal cancers at Istinye University Liv Hospital Bahcesehir.

• Specializes in breast, lung, and gastrointestinal cancers
• Internal medicine specialist with experience across multiple hospitals
• Practiced oncology at Ankara Oncology Clinic and Erzurum Regional Training Hospital
• Trained at Selcuk University's Faculty of Medicine

Assoc. Prof. Nail Paksoy specializes in medical oncology at Medipol Bahcelievler Hospital, with a focus on gastrointestinal cancers.

• ESMO Board Certified in Medical Oncology
• Participated in international clinical trials for colorectal cancer treatments
• Published research on FLOT regimen for metastatic gastric cancer