Best Sigmoid adenocarcinoma Doctors Worldwide — TOP 93

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

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

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

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 professor and radiation oncologist at Anadolu Medical Center. She is an Honorary Fellow of the American College of Radiology (H.FACR). She completed a clinical research fellowship in stereotactic radiosurgery at Stanford University. Stereotactic radiosurgery and MR-guided adaptive SRS make up 75% of her clinical practice.

• President of the Turkish Society for Radiation Oncology.
• Chair of the ESTRO National Societies Committee.
• Recipient of the ASCO International Development and Education Award.
• Author of over 70 international peer-reviewed publications.

Dr. Huseyin Baloglu is a pathologist at Anadolu Medical Center in Turkey. He leads liquid biopsy and precision oncology services. Dr. Baloglu holds a patent for molecular diagnostics in thyroid cancer treatment. He completed training at Albert Einstein College of Medicine and Heidelberg University.

• Authored over 600 peer-reviewed publications in molecular and surgical pathology.
• Specializes in tumor biopsy, immunohistochemistry, and genetic mutation testing.
• Treats complex oncological cases, including glioblastoma and rare sarcomas.
• Works at Anadolu Medical Center, a facility affiliated with Johns Hopkins Medicine.

Board-certified surgical oncologist with a focus on complex abdominal cancers. Dr. Pastrana combines surgical expertise with academic teaching at Universidad Anahuac.

• Trained at Centro Medico Nacional 20 de Noviembre
• Board certified by Conacem until 2030
• Active member of the Mexican Oncology Society
• Specializes in minimally invasive techniques

Director of the gastrointestinal tumors institute at Sourasky Medical Center – Dr. Sharon Peled specializes in systemic treatment of digestive tract cancers.

• Trained in gastrointestinal cancers at Royal Marsden Cancer Centre in London
• Member of the Israeli Society of Oncology and Radiology
• Conducted clinical research on patient attitudes towards trials
• Performs advanced treatments like HIPEC and immunotherapy

Prof. Ofer Merimsky is a leading oncologist specializing in bone and soft tissue tumors at Sourasky Medical Center. His expertise spans decades, with leadership in global oncology societies.

• Head of the Department of Bone and Soft Tissue Tumors
• Chair of the Israeli Association of Clinical Oncologists
• Member of ASCO and ESMO, top global oncology organizations
• Fellowship-trained in Paris for advanced sarcoma treatment
• Teaches oncology at Jerusalem University

Specializes in advanced cancer treatments at Liv Bona Dea Hospital Baku, with a research focus on predictive markers for treatment response.

• Trained at Istanbul University and Cleveland Clinic
• Expert in cytotoxic chemotherapy, hormone therapy, and immunotherapy
• Published multiple studies on cancer treatment outcomes
• Experience in both clinical practice and research

Dr. Arnon Nagler is a hematologist at Sheba Medical Center in Israel. He is a professor at Tel Aviv University and a renowned transplant expert. Dr. Nagler founded Israel’s first public cord blood bank. He also performed the first cord blood transplantations in the country. He completed postdoctoral training at Stanford University and is board-certified in hematology.

• Pioneered reduced–intensity allogeneic transplant protocols for blood cancers.
• Served as Chair of the Acute Leukemia Working Party for the EBMT.
• Published over 400 articles in leading journals like Blood and Leukemia.
• Works at Sheba Medical Center, ranked 7th worldwide by Newsweek in 2026.

3,500+ robotic surgeries – Dr. Tvaruzek is one of the most experienced robotic surgeons in the Czech Republic, heading the Center of Robotic Surgery.

• Certified expert by Intuitive Surgical – creators of the da Vinci system
• Specializes in precise nerve-sparing techniques
• Member of Association of Bariatric Surgery and Aesthetic Medicine
• Performs complex transoral tumor removals with robotic assistance

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. Osama Abdel Mohimen Mohamed leads the Hematology Unit at Shefaa Al Orman Oncology Hospital. He treats complex blood cancers, including leukemia, lymphoma, and myeloma. Dr. Mohamed is a member of the European Society for Medical Oncology. He also holds memberships in the American Society of Hematology and ASBMT.

• Specializes in chemotherapy, immunotherapy, and bone marrow transplantation.
• Manages aggressive acute leukemia and chronic blood disorders.
• Treats complications arising from various solid tumors.
• Works at an ESMO-accredited center that handles 6,000 patients annually.

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

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

Dr. Yuri Goldes is the Deputy Director of General Surgery at Sheba Medical Center. He pioneered some of Israel’s first robotic resections for stomach and pancreatic cancers. Forbes Israel named him among the nation’s best gastrointestinal surgeons. In 2019, he received the Best Doctor of the Year award from the Israeli Ministry of Health.

• Specializes in robotic and laparoscopic surgery for pancreatic, gastric, and esophageal cancers.
• Performs minimally invasive Whipple procedures, one of the most complex abdominal operations.
• Treats benign conditions including diaphragmatic hernia, achalasia, GERD, and gallbladder disease.
• Works at Sheba Medical Center, ranked among the Top 10 hospitals worldwide by Newsweek.