Page 3 - Best Sigmoid adenocarcinoma doctors: TOP 95 doctors

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

Dr. Irfan Cicin is a Professor of Medical Oncology at the Trakya University Faculty of Medicine (2015–present). He has over 20 years of medical oncology experience and has held academic roles since 2010.

Education: MD, Istanbul University – Cerrahpaşa (1991–1997). Residency in Internal Medicine, Trakya University (1997–2002). Fellowship in Medical Oncology, Trakya University (2002–2004).

Practice: Medical Oncologist, Trakya University (2005–2008). Medical Oncologist, Elazığ Training and Research Hospital (2008–2010). Associate Professor of Medical Oncology, Trakya University (2010–2015). He previously served as a physician in the Turkish Air Force at Etimesgut Military Hospital (2004–2005).

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.

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

Dr. Mustafa Serkan Alemdar is a Medical Oncology specialist with a strong academic background and extensive hospital experience.

• Trained at Akdeniz University – one of Turkey's leading medical schools
• Specializes in Internal Medicine and Medical Oncology
• Years of experience across multiple prestigious hospitals
• Focused on comprehensive cancer care and treatment

Dr. Mariam Mohammed Hussein Abu Zeid is a clinical oncologist. She treats solid tumors and hematologic cancers. She earned her MBBCh from Ain Shams University in 2007 (Excellent). She completed a Master’s in Clinical Oncology and Nuclear Medicine in 2011 (Very Good). She received a Ph.D. in 2018 and an ESMO Certificate in 2015.

She leads and monitors clinical trials. Her work includes data collection and analysis. She administers chemotherapy and manages treatment toxicities. She also plans care with multidisciplinary teams. Her experience includes Ain Shams University Hospitals (2009–2012), the International Medical Center (2012–2014), and Wadi El Nile Hospital (2015–2019). Her roles covered diagnosis and staging, supportive care, quality improvement, and screening. She educates patients and families about the diagnosis, treatment options, and palliative care.

Specialized in laparoscopic surgery for sigmoid adenocarcinoma – trained at Istanbul University's top programs.

• Over 16 years of experience of surgical experience
• Advanced training in laparoscopic bariatric and oncological cancer surgery
• Performs minimally invasive procedures for better recovery

Dr. Alon Pikarsky has taught and trained new surgeons for over 39 years of experience at Hadassah Medical Center's top-rated department.

• Senior Lecturer in Surgery since 2005
• Residency Program Director since 2000 – shaping future surgeons
• Board-certified in General Surgery with a subspecialty in Colorectal Surgery
• Israel Board Certified in General Surgery since 1998
• Long-standing member of multiple professional surgical associations

Professor Shixin Liu, MD, PhD, is the Discipline Leader of the Oncology Center. He is the former President of Jilin Provincial Cancer Hospital and former Director of the Cancer Prevention and Treatment Research Institute. He is a second-level professor and doctoral supervisor. He has received the State Council Special Government Allowance, the 4th National Famous Doctor (Outstanding Contribution) award, and the Model of Medical Ethics honor.

He specializes in the comprehensive diagnosis and treatment of malignant tumors. His focus is precision radiotherapy for thoracic and abdominal cancers. He is skilled in IMRT, VMAT, and SBRT for lung, esophageal, breast, and rectal cancers.

His leadership roles include Vice Chair of CMA Radiation Oncology, CACA Radiotherapy, and CACA Particle Therapy. He serves on the CSCO Standing Committee and as Vice Chair of the CSCO Radiation Oncology Expert Committee. He is Vice Chair of CPAM Radiation Oncology and a Standing Committee member of CSMEA. He chairs the Jilin Medical Association Radiation Oncology branch. He is on the editorial boards of the Chinese Journal of Radiation Oncology and the Practical Journal of Cancer.

49 years of experience in immunology with a focus on virotherapy – Dr. Jaunalksne leads the Clinical Immunology Center at Pauls Stradins Clinical University Hospital.

• Specializes in one of the newest immunology fields
• Graduate of Riga Medical Institute
• Internship in Internal Medicine
• Head of Clinical Immunology Center

Specializes in oncological surgeries, particularly colon cancer, with a focus on complex cases at Büyük Anadolu Hospitals.

• Expert in pancreatic and bile duct surgeries
• Performs advanced bariatric and metabolic surgeries
• Skilled in breast and thyroid cancer procedures

15,000+ surgical procedures performed – Dr. de Lacy is a pioneer in minimally invasive techniques for colon and rectal cancer at Hospital Quiron Barcelona.

• Performs 1,000+ interventions annually using laparoscopic and robotic surgeries
• World's first to perform TaTME for rectal cancer
• President of the Association of Surgeons-Endoscopists in Europe
• Lecturer on advanced laparoscopy techniques internationally

Dr. Yaacov Lawrence, MA, MBBS, MRCP, is Chair of Radiation Oncology at Sheba Medical Center. He has nearly 30 years of experience in precision radiation oncology and neuro-oncology.

He is an expert in advanced radiation therapy and radiosurgery. He performs stereotactic radiosurgery for brain tumors. He leads Sheba’s GI Cancer Program in gastrointestinal oncology. He also provides precision care for lung and prostate cancers. He pioneered celiac plexus radiosurgery for severe pain from pancreatic cancer.

Training and credentials: MA and MBBS (Cambridge and UCLH); MRCP (RCP); Radiation Oncology fellowship (Thomas Jefferson University). Honors include the ASCO Young Investigator Award and Fellow of ASTRO (FASTRO). He has authored over 280 publications. He is Director of the Center for Translational Radiation Oncology and an Associate Professor at Tel Aviv University.

Professor Raanan Berger, MD PhD, is a medical oncologist and radiotherapist. He is Director of the Cancer Center at Sheba Medical Center and heads its clinical research unit. He was listed in Forbes Israel’s “Best Doctors” (2025). He leads the genitourinary oncology program with a focus on prostate cancer. His care includes systemic therapy and radiotherapy in a multidisciplinary, patient-centered model.

He is board-certified in oncology. He earned his MD and PhD at Tel Aviv University and completed his clinical training at Sheba. He then completed a postdoctoral fellowship at Dana-Farber/Harvard, focusing on prostate cancer with Dr. Philip Kantoff and molecular oncology in Dr. William C. Hahn’s lab. He is a member of ESMO and ASCO. He has co-authored more than 20 peer-reviewed papers, including studies on outcomes in high- versus very high-risk prostate cancer and on BRCA1/2 in large cohorts.

Dr. Alexander Beny directs the Gastrointestinal Malignant Service and uses a highly targeted approach combining medical and radiation oncology.

• Over of experience at Rambam Medical Center
• Leads both Gastro-intestinal and Onco-gynecology clinics
• Certified by both the Israeli and European medical boards
• Completed specialized Brachytherapy training from ESTRO
• Holds a Doctor of Medicine from Italy's Firenze Medical School

Prof. Ben Boursi is a physician in the Gastrointestinal Cancer Department at Sheba Medical Center. He specializes in internal medicine, medical oncology, and cancer epidemiology. He is board certified in internal medicine and medical oncology. He earned a B.Med.Sc (summa cum laude) and an MD (magna cum laude) from Tel Aviv University.

He completed clinical and research fellowships in GI oncology and cancer epidemiology at the University of Pennsylvania. He also completed electives at MD Anderson and Mayo Clinic. He founded the ECOG-ACRIN Microbiome Working Group. His microbiome-oncology research has been published in leading journals, including Science, and highlighted by ASCO.

He developed predictive models for early diagnosis of colorectal and pancreatic cancers. These models are now in clinical evaluation. He holds an academic appointment at Tel Aviv University. He is also an Associate Scholar at the University of Pennsylvania.

Prof. Thomas W Kraus has performed 3,000+ surgical interventions for bowel diseases, specializing in complex gastrointestinal oncology cases at Nordwest Clinic.

• Nationally recognized expert in pancreatic and hepatobiliary surgery
• Founder and Director of the German Society 'Art of Surgery'
• Uses minimally invasive techniques like intraoperative sonography
• Trained at top cancer centers including Johns Hopkins and Memorial Sloan-Kettering
• Recipient of multiple international awards for surgical excellence

Dr. Muhammed Mustafa Atci is an Associate Professor of Medical Oncology at İstinye University, Liv Hospital Topkapı (2025–present). He previously served as Associate Professor and Education Coordinator at Prof. Dr. Cemil Taşcıoğlu City Hospital (2023–2025). He was also a Medical Oncologist there (2018–2021).

He has been a member of ASCO and the Turkish Society of Medical Oncology since 2018. He is the author or co-author of 19 peer-reviewed international papers on colon, breast, gastric, pancreatic, lung, thyroid, sarcoma, and colorectal cancers.

Notable works include a multicentre study on stage IIB colon cancer survival (Journal of Chemotherapy). He also studied the De Ritis ratio for lung metastasis in testicular cancer (Current Urology). His prognostic studies used PET/CT, MSI, lymph node ratio, and metabolic tumor volume.