Page 3 - Best Sigmoid adenocarcinoma doctors: TOP 93 doctors

Dr. Klauzner is recognized as one of the top Whipple surgeons in Israel – a complex operation often used for digestive cancers. He leads the surgical department at Sourasky Medical Center (Ichilov).

• Specializes in colorectal and gastrointestinal surgery
• Has over 42 years of experience of surgical experience
• Expert in pancreatic and colon cancer procedures
• Current Chairman of Surgery at his hospital

Univ. Prof. Dr. Wolfgang Köstler is an Austrian medical oncologist specializing in targeted cancer therapies at Wiener Privatklinik.

• Over 22 years of experience of clinical and academic experience in oncology
• Focus on breast and gynecologic cancers using personalized medicine
• Former Deputy Head at Medical University of Vienna's Clinical Division of Oncology
• Active in translational research and biomarker development
• Published extensively in leading international oncology journals

Prof. Dr. Karl J. Oldhafer is a world-leading expert in pancreatic, liver and stomach cancer surgery, operating at Asklepios Hospital Barmbek.

• Specializes in radiosurgery computer-navigated liver surgery and liver metastasis
• Heads the Centre for Liver Diseases at the hospital
• Uses ultrasonic knife for precision and minimally invasive techniques
• Works with multidisciplinary teams in oncology, gastroenterology, and radiology

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

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

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

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

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.

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.

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

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

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.

Dr. Mohamed Mahmoud Abdelhakim is Head of Radiation Oncology at Shefa al Orman Hospital, Luxor. He is Professor of Radiation Oncology at the National Cancer Institute, Cairo University. He previously served as Associate Professor (2015–2020), Lecturer (2010–2015), Assistant Lecturer (2003–2009), and Resident (2000–2003). He also worked as a Specialist at Gharbia Cancer Society.

He treats inpatients and outpatients with breast, soft tissue sarcoma, lymphoma, gynecologic, gastrointestinal, genitourinary, and CNS tumors. His skills include image-guided brachytherapy, IMRT, VMAT, SRS, and SBRT. He performs conventional and CT-based planning and 3D-CRT. He works with cobalt and linear accelerators and electron beam therapy. He provides HDR and LDR intracavitary and interstitial brachytherapy. He also performs stereotactic radiotherapy, total body irradiation, and total skin irradiation.

Member: Egyptian Cancer Society, ESTRO, ESMO.

Dr. Emad Shash, M.B.B.Ch, MSc, M.D., is a medical oncologist. He is the Medical Director of the Breast Comprehensive Cancer Hospital at NCI. He leads the Medical Oncology Department and is the Breast Program Director at Shifaa Al Orman Cancer Hospital in Luxor. His clinical focus includes breast, gynecologic, genitourinary, thoracic, gastrointestinal, and rare cancers. He specializes in systemic therapy, including chemotherapy, targeted therapy, and immunotherapy.

He served as coordinating research physician and medical lead at the EORTC from 2011 to 2015. Since 2008, he has contributed to more than 70 international oncology trials as a coordinator, sub-investigator, principal investigator, and sponsor medical monitor. Credentials include M.B.B.Ch (2004), MSc (2010), MD (2015), and the EORTC Certificate of Excellence (2015). He also holds a Diploma in Hospital Quality Management & Patient Safety (JCI/57357, 2017). He is a Fellow of the EIO. He is a member of ESMO (panel voting), ESGO, and ASCO (IAC), and serves on the ECRIN board.

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.

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.

Dr. Maha Yahia is a medical oncologist and hemato-oncologist. She provides assessment, diagnosis, and treatment planning. Her treatments include chemotherapy, targeted therapy, and immunotherapy. She cares for patients with breast, genitourinary, gynecologic, thoracic, gastrointestinal, and rare cancers.

Education: M.B.B.Ch, Kasr El-Aini, Cairo University (1997–2003). Master in Hemato-oncology, National Cancer Institute, Cairo University (2008). Doctoral Degree in Hemato-oncology, National Cancer Institute, Cairo University (2015).

Experience: Resident in Medical Oncology, Maadi AFMC (2005–2010). Visitor Resident, NCI Cairo (2008–2009). Consultant Assistant, Prof. Hussein Khaled Clinic (2010–2017). Specialist, International Medical Center (2011–2012), Wadi El Nile Hospital (2013–2014), and Maadi AFMC (2011–2018). Head, Clinical Research Support Team, Maadi AFMC (2016–2018). Major (2014–2016) and Lt. Colonel Doctor (2016–2018), Egyptian Armed Forces. Lecturer of Clinical Research, AFCM (2019–2021).