Rectal Cancer Doctors Worldwide

Specialized in gastrointestinal oncology for over 27 years – Prof. Sağlam heads the Medical Oncology Department at Gayrettepe Florence Nightingale Hospital.

• Professor of Medical Oncology since 2016
• Fellowship-trained at Istanbul University – one of Turkey's leading medical schools
• Member of ESMO, ASCO, and European Neuroendocrine Tumor Society
• Previously worked at Istanbul University Oncology Institute

Dr. Mehmet Salih Iyikesici is a medical oncologist. His work focuses on metabolically supported chemotherapy (MSCT), ketogenic diet–supported cancer care, hyperthermia, hyperbaric oxygen therapy, and insulin potentiation therapy. He emphasizes care for breast, pancreatic, and gastric cancers.

He is a Medical Oncology Specialist at Neolife Medical Center (2026–present). He previously served at Private Bahçelievler Medical Park (2013–2026), Medicana Beylikdüzü (2010–2013), Silivri Anadolu (2009–2010), Diyarbakır Training and Research (2008–2009), and Bursa Çekirge State (2006–2008). Earlier, he worked as an Internal Medicine Specialist (1997–2003). He was an Assistant Professor at Altınbaş University (2014–2026).

Training: Medical Oncology subspecialty, Marmara University (2003–2006). Internal Medicine, Istanbul Haydarpaşa Numune (1992–1996). Medicine, Uludağ University (1985–1990). Member, Medical Oncology Association (since 2004). His recent research (2019–2020) covers gastric, breast, pancreatic, and lung cancers. Topics include long‑term survival in metastatic pancreatic cancer and feasibility in metastatic non‑small cell lung cancer (NSCLC).

Dr. Einat Shacham Shmueli is a senior medical oncologist at Sheba Medical Center. She specializes in gastrointestinal cancers, treating the colon, stomach, and pancreas. Dr. Shacham Shmueli holds dual board certifications in oncology and gastroenterology. She trained at UCSF in the United States. Her clinic at Sheba Medical Center is ranked among the top 10 hospitals worldwide.

• Authored over 25 peer-reviewed publications on tumor biology and new treatments.
• Serves as an investigator for the National Cancer Institute (NCI) programs.
• Manages metastatic disease using precision diagnostics and specialized biomarkers.
• Member of the Israel Society of Oncology and Radiotherapy.

Dr. David Kuczer is a radiation oncologist at Amethyst Radiotherapy in Vienna. He specializes in precise cancer treatment for tumors of the prostate, breast, and brain. Dr. Kuczer presents every patient case to an interdisciplinary tumor board. This ensures each person receives a validated treatment plan from a team of experts.

• Uses the Elekta Versa HD linear accelerator for precise tumor targeting.
• Treats complex conditions including glioblastoma, lung cancer, and meningioma.
• Coordinates care within a clinic ranked among Newsweek's World's Best Hospitals 2026.
• Provides IMRT, VMAT, and stereotactic radiosurgery for high-accuracy radiation.

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.

Prof. Dr. Sefik Igdem specializes in Radiation Oncology at Gayrettepe Florence Nightingale Hospital, focusing on advanced treatments like Truebeam Stx and Halcyons.

• Professor at Demiroğlu Bilim University, a leading medical institution
• Expert in conformal treatments for precise radiation therapy
• Trained at Istanbul University, one of Turkey's top medical schools
• Specializes in head and neck cancers alongside rectal cancer

Professor Xiao Yueyong is Chief Physician in the Department of Radiological Diagnosis at the Chinese PLA General Hospital. He is a leading expert in minimally invasive interventional oncology. He serves as the inaugural President of WATA (2025–). He is President of the International (2020–) and Asian (2012–) Societies of Cryotherapy. He is also Deputy Head of the NHC Expert Group on tumour ablation regulations (2009–).

He has performed over 100,000 CT/MRI‑guided minimally invasive procedures. His work covers chemical ablation, RFA, MWA, cryoablation, and NanoKnife (IRE). He introduced and advanced NanoKnife ablation in China. He led the first national standards for tumour cryoablation and NanoKnife.

Honors include the National Special Contribution Award (Lifetime Honorary). He received First Prize from the Chinese Medicine Education Association (2021). He received two Second Prizes for Military Medical Achievements (2016, 2018) and two Second Prizes from the China Anti‑Cancer Association (2019, 2022). He was named Asian Ablation Master. His research record includes 13 Chinese patents. He is the principal investigator for four NSFC projects and one MOST subject. He has published over 200 papers, with over 110 as first or corresponding author and over 40 in SCI journals. He has led over 10 ablation guidelines or consensus statements.

Dr. Sinan Karaaslan specializes in rectal cancer with 900+ procedures performed and 29 years of experience at Anadolu Medical Center.

• Board-certified medical oncologist with expertise in colorectal and urogenital cancers
• Member of the Turkish Medical Oncology Society and Turkish Lung Cancer Society
• Provides online consultations in Turkish for international patients
• Trained at Istanbul University's Cerrahpaşa Medical School – one of Turkey's leading institutions

Ranked first in Turkey's Medical Oncology Proficiency Exam, Dr. Keskin specializes in personalized cancer therapy using advanced genetic mapping.

• Over 900+ procedures performed with 25 years of experience
• Pioneer in immunotherapy and targeted therapy for complex cancers
• Founder and head of Oncology Center at Memorial Şişli
• Published 42+ articles in international journals
• Member of ASCO and ESMO

Mustafa Solak specializes in gastrointestinal cancers, including rectal cancer, with training at Hacettepe University Cancer Institute and MD Anderson Cancer Center.

• Trained at Hacettepe University – one of Turkey's leading medical schools
• Completed fellowship at MD Anderson Cancer Center – a globally recognized oncology institution
• Specializes in gastrointestinal cancers alongside other oncology fields
• Works at Hisar Hospital Intercontinental – a prominent healthcare facility

Performed 400+ pancreatic and gastric cancer surgeries – Prof. Peker brings extensive expertise in complex gastrointestinal surgeries.

• Specialized in Hepatopancreatobiliary Surgery at Mayo Clinic
• Founded the HPB Surgery unit at Bakırköy Dr. Sadi Konuk Hospital
• Prof. at Başakşehir Çam and Sakura City Hospital
• PhD in Medical Biology with a focus on cancer

Dr. Mehmet Akif Ozturk is a medical oncology specialist at Memorial Şişli Hospital in Istanbul. He currently serves as a faculty member at Üsküdar University. Dr. Ozturk previously held a faculty position at Marmara University Pendik Training and Research Hospital. He treats patients at a JCI-accredited facility known for its high organ transplant success rates.

• Specializes in clinical oncology for local and international patients.
• Practices at Memorial Şişli, the first hospital in Turkey to earn JCI accreditation.
• Serves as a medical oncology specialist in Istanbul since 2018.
• Held specialist roles at several major Turkish medical centers throughout his career.

Assoc. Prof. Gorkem Turkkan has successfully completed over 2,500 radiotherapy sessions with the MR-Linac device – a leader in precision radiation treatment.

• Specializes in stereotactic radiotherapy and MRI-guided treatments
• Completed clinical research at Maastricht University's MAASTRO Clinic
• Member of both Turkish and European radiation oncology societies
• Published 27 articles and 31 conference presentations
• Currently involved in two TÜBİTAK research projects

Dr. Mustafa Ozdogan is a professor and medical oncology specialist at Memorial Göztepe Hospital. He is the current President of the Antalya Breast Cancer Association. Dr. Ozdogan previously led oncology departments at Memorial Antalya and Medstar Antalya hospitals. He focuses on a multidisciplinary approach to complex cancer care.

• Sits on the board of the Turkish Society of Medical Oncology.
• Maintains active membership in ESMO and ASCO.
• Co-chairs the national working group for head and neck cancers.
• Works at Memorial Göztepe, which features MR Linac and robotic surgery systems.

Assoc. Prof. Dr. Heves Sürmeli is a specialist in Internal Medicine and Medical Oncology. She received her medical degree (M.D.) from Eskişehir Osmangazi University in 2004. She completed her Internal Medicine residency at Kartal Dr. Lütfi Kırdar Training and Research Hospital, Istanbul (2005–2010). She then completed subspecialty training in Medical Oncology at the same hospital (2014–2017).

At the same center, she served as a Medical Oncology Specialist (2017–2023). She then worked as Administrative and Clinical Director (2023–2026). Her clinical interests include breast, lung, gynecologic, gastrointestinal, and urologic cancers.

She has published many articles in international peer‑reviewed journals. She has presented at national and international conferences. She is active in professional societies. She has received several awards.

Professor Yesim Yildirim has performed 900+ oncological procedures. She is a professor and a specialist in cancer immunotherapy and targeted therapies at Anadolu Medical Center.

• 22 years of experience in medical oncology
• Author of over 80 international and national publications and books
• ESMO-certified after passing their rigorous examination
• Completes advanced oncology courses and holds an MBA in healthcare management

Dr. Eda Tanrikulu is a clinical oncologist at Anadolu Medical Center in Istanbul. She ranked 3rd nationally in Turkey's minor specialty medical exam. Dr. Tanrikulu specializes in chemotherapy and individualized cancer treatments. She works at a facility affiliated with the Johns Hopkins Hospital.

• Served as the head of the medical oncology unit at Haydarpaşa Numune Hospital.
• Participated in global training at Oxford University and ESMO in Manchester.
• Treats gastrointestinal, urological, lung, and breast cancers.
• Member of the American and European Societies of Medical Oncology.

Dr. Tugba Akin Telli is a medical oncologist at Istanbul Florence Nightingale Hospital. She completed clinical research fellowships at Institut Jules Bordet in Belgium. Dr. Telli also gained experience at the MD Anderson Cancer Center in the US. She focuses on chemotherapy and immunotherapy for cancer patients.

• Trained at Hacettepe University and Marmara University Faculty of Medicine.
• Performs PET-MRI and immunohistochemistry for precise cancer diagnosis.
• Provides care at a JCI-accredited smart hospital in Istanbul.
• Treats patients using protocols from top European and American cancer centers.

Dr. Mehmet Dogu Canoglu is a radiation oncologist at Anadolu Medical Center in Istanbul. He specializes in precise tumor targeting using MR Linac and CyberKnife technologies. Dr. Canoglu trained at Kocaeli University. He previously served at Medipol Mega University Hospital. He treats various cancers, including complex brain, prostate, and lung tumors.

• Expert in Varian TrueBeam and Trilogy radiation delivery systems.
• Performs stereotaxic radiosurgery and targeted radiotherapy for sarcomas.
• Works at Anadolu Medical Center, a facility affiliated with Johns Hopkins Medicine.
• Treats patients at a clinic ranked among the world's top 10 for medical tourism.

Prof. Sadi Kerem Okutur has published over 20 papers and 10 book chapters focused on medical oncology, making him a key contributor to the field.

• Over a decade of experience as a medical oncologist
• Awarded the 2012 Oncology Research Award by the Turkish Medical Oncology Association
• Member of the European Society for Medical Oncology
• Associate Professorship in medical oncology