Best Sigmoid adenocarcinoma doctors: TOP 79 doctors

Author of 40+ peer-reviewed publications in tumor biology/immunology and systemic therapy (immunotherapy and targeted therapy); member of the Turkish Medical Oncology Association and the European Head & Neck Society.

Why patients choose Dr. Bülent Karagöz:

• Treatment based on U.S. protocols through Anadolu Medical Center’s strategic collaboration with a leading U.S. institution — Johns Hopkins Medicine.
• 40+ scientific publications in tumor biology/immunology and systemic therapy (immunotherapy and targeted therapy).
• Former department head (GATA) and professor/department chair (Okan University, Turkey) — leadership and clinical experience at major centers.
• Treats solid tumors (e.g., breast, lung, colorectal), applying modern regimens guided by tumor biology.
• Anadolu Medical Center holds ESMO designation and JCI accreditation — meaning the doctor treats according to international protocols, within a multidisciplinary team, with strict safety oversight.

Dr. Serdar Turhal is a highly experienced oncologist specializing in medical oncology and chemotherapy for breast cancer at Anadolu Medical Center. He is a member of many international oncology associations and has authored numerous articles in international publications. He specializes in prognostic factors and the therapy of malignant gastrointestinal neoplasms. To receive a consultation from Dr. Turhal, please submit a request on Bookimed.

Dr. Mustafa Solak is a medical oncologist with expertise in breast, testicular, ovarian, lung, head-neck, and gastrointestinal cancers. He graduated from Hacettepe University School of Medicine. He completed his residency at Istanbul Sisli Etfal Teaching and Research Hospital. He then pursued a fellowship at Hacettepe University Cancer Institute.

Dr. Solak has managed many complex cancer cases. He has contributed to clinical advancements at respected centers, including the University of Texas MD Anderson Cancer Center. He has also worked at Hitit University Corum Training Hospital and Medical Park Hospital. His experience shows a strong commitment to cancer care and research.

Prof. Yeşim (Yesim) Yıldırım — Medical Oncologist at Anadolu Medical Center (since 2011). ESMO-certified specialist, Professor since 2021, author of 80+ scientific publications. Trained at top centers — Rambam (Israel) and Mount Vernon (UK). Treats breast, lung, and gastrointestinal (GI) cancers, as well as melanoma and sarcomas; uses immunotherapy and targeted therapy.

Why patients choose Dr. Yeşim Yıldırım:

• 20+ years of clinical practice; Professor of Medical Oncology since 2021.
• 80+ peer-reviewed publications in tumor biology, immunotherapy, and targeted therapy — treatment plans are based on up-to-date evidence.
• ESMO certification — from Europe’s leading oncology society — confirms high qualification and continuous training to international standards.

Assoc. Prof. Kıvanç Derya Peker is a surgeon with expertise in pancreatic, gallbladder, liver, and stomach surgeries. He also specializes in obesity and metabolic surgery, as well as kidney transplantation. He completed his medical and surgical training at Istanbul University. He ranked among the top three in the national minor specialty exam for gastroenterological surgery.

Dr. Peker has performed over 400 pancreatic and gastric cancer surgeries and more than 200 liver surgeries. He has also completed many gallbladder, biliary tract, obesity-metabolic procedures, and kidney transplants. He received training at the Mayo Clinic. He co-founded the Hepatopancreatobiliary Surgery unit at Bakırköy Dr. Sadi Konuk Hospital. There, he provided advanced training to surgical residents.

He is known for his research in aging and stem cell treatments. Dr. Peker has established gastroenterology surgery clinics at major hospitals. He is accredited by the Turkish HPB Association and has received a scholarship from the Turkish Surgery Association.

Ayhan Erdemir, MD, is a general surgeon at Anadolu Medical Center since 2006 and one of the best pancreatic cancer specialists. He completed his undergraduate education at Fırat University Medical Faculty, and has taken part in numerous courses such as Cytoreductive Surgery & Hipec Course, Surgical Oncology Society, and Intuitive Surgical's da Vinci Surgical System Online Training Module.

Dr. Lana Bijelic is a board-certified oncological surgeon. She specializes in peritoneal carcinomatosis. Since 2019, she has been part of the Carcinomatosis Surgical Group at the Teknon Oncology Institute. She trained under Prof. Paul Sugarbaker at Washington Hospital Center and brings strong expertise to her team.

Dr. Bijelic has worked as Research Director at Inova Fairfax Hospital. She has also been an associate professor at Virginia Commonwealth University and Georgetown University. She is an active member of the American College of Surgeons and the Society of Surgical Oncology.

Throughout her career, Dr. Bijelic has received many academic awards, including several Surgical Excellence Awards and top prizes in research. She is known for her leadership and important contributions to surgical oncology.

Dr. Pelles Sharon is an oncologist known for her skill in advanced cancer treatments and clinical research. She has led important studies on how cancer patients view and understand clinical trials. Her work has helped improve patient involvement and outcomes.

Dr. Sharon performs surgeries for colon and stomach cancer, HIPEC, SIRT therapy, and Whipple surgery. She also offers modern treatments such as immunotherapy, targeted therapy, and chemoembolization. She is respected for her high success rates and dedication to evidence-based care.

Dr. Ofer Merimsly is the best sarcoma, lymphoma, and lung cancer doctor within Israel and in the world. Also specializes in Whipple surgery treatment for patients with pancreatic cancer. Head of the National Center for sarcomas of bone and soft tissues of the Tel Aviv Medical Center Sourasky (Ichilov).

Specialty:

• Treatment of all types of lung cancer and thoracic organs
• Treatment of all types of sarcomas of bone and soft tissue
• Treatment stromal tumors of the gastrointestinal tract

Education and specialization:

• Higher medical education, graduated the Medical Faculty of the Hebrew University of Jerusalem, Israel
• Residency in General Oncology and Radiotherapy
• Training in the field of radiotherapy and brachytherapy at New York Hospital, USA
• Special refresher course for the treatment of tumors of the skeleton and soft tissues, Paris. France

Membership:

• President of the Society of oncologists and radiotherapists Israel
• The American Scientific Cancer Society
• European scientific medical organization
• European Society of Oncology of the musculoskeletal system
• International Society for the treatment of tumors of the connective tissue

Dr. Duygu Derin is an experienced medical oncologist who specializes in treating gastrointestinal cancers, lung cancer, and gynecologic neoplasms. She is a member of several oncology associations and has published more than 30 national and international scientific papers. She graduated from Galatasaray Medical High School and achieved a Medical Doctor rank from the Medical Faculty of Istanbul University. She has completed internships and professional development courses in various hospitals and holds the title of Associate Professor.

Dr. Jaroslav Tvaruzek is a specialist in robotic surgery. Dr. Tvaruzek is a leading certified expert by Intuitive Surgical - the American produced of the original Da Vinci robots. The doctor is a member of Association of Aesthetic Medicine and Association of Bariatric Surgery.

Dr. Tvaruzek heads the Center of Robotic Surgery located in the St. Zdislava Hospital (the Czech Republic). The doctor has performed over 3,500 robotic surgeries for his practice. Among them are:

• prostatectomy with preservation of the erectile function
• transoral surgeries (removal tumors of the nasopharynx, larynx, trachea, mouth)
• thyroidectomy
• nephrectomy
• bariatric surgeries (surgical treatment of obesity).

Oncologist, Oncohematologist, Surgeon

Head physician of Oncology and Hematology Center

Prof. Elke Jaeger is one of the best German doctors according to Focus rating.

Head of Teaching at the Puerto Vallarta Regional Hospital

2020-2023

Medical records manager at the Regional Hospital of Puerto Vallarta 2 months 2020

General practitioner in private medical office

2015-2022

Doctor in charge of weight control clinic

2013-2014

Medical assistant in dermatology clinic

2008-2013

Medical Assistant in Dermatological procedures.

 Medical Assistant in minimally invasive surgical procedures

 Operation of fractional laser machine - IPIXEL-ER and

facial rejuvenation with IPL.

 Experience in laser hair removal with Intense Pulsed Light and

radiofrequency

 Experience with ultrasonic cavitation

 Experience with ultraviolet (UV) light phototherapy machine for the

treatment of psoriasis and vitiligo.

 Experience assisting in Botox and Fillers procedures.

 Biomagnet certified by the Higher Institute of Biomagnetism

doctor ISAAC GOIZ DURAN

 Experience in clinical records

 Training in continuing education and professional development of teachers

Prof. Dr. med. Karl J. Oldhafer is a Senior Consultant of the Department of General and Abdominal Surgery and Surgical Oncology at the Abdominal Medical Center of the Barmbek Asklepios Hospital and is a specialist in hepatic surgery. His medical interests include radioservice computer-navigated liver surgery, metastasis surgery, surgery using the ultrasonic knife, minimally invasive abdominal surgery, hepatobiliary surgery, and pancreatic surgery.

Personal Information 

Sex:  Male

Born : 1968 

Professional Experience

Gayrettepe Florence Nigthingale Hospital

Medical Oncology Department

Besiktas/Istanbul/Turkey (ongoing)

Education:

He became Professor (22/April /2016)

Medical Oncology

Attending Phys.in Gastrointestinal Oncology (January 2005 ,2009)

Istanbul University Oncology Institue,

Department of Medical Oncology

Medical Oncology Fellowship (December 2001-December2004)

Istanbul University, Istanbul Medical Faculty

Hemodialysis Traning (May1996-January1997)

Istanbul University ,bCerrahpasa Medical Faculty

Internal Medicine Residency (November 1991-November 1996)

Istanbul University ,bCerrahpasa Medical Faculty

Ege University Medical Faculty (1985-1991)

Professional Experience

February 1999-November 2001

Metropolitan Florence Nigthingale Hospital

American Cancer Center, Gayrettepe/İstanbul

April1997- October 1998

Bayraktar Dialysis Center

Güngören/ Istanbul

Membership

Turkish Medical Oncology Association

ENET(European Neuroendocrine Tumour Society)

ESMO

ASCO

Dr. Yahya Özel is a highly experienced general surgeon with expertise in bariatric surgery, hepatobiliary diseases, abdominal hernias, endocrine surgery, and oncological surgery. He completed his medical education at Istanbul University, Istanbul Faculty of Medicine in 1990 and pursued his specialization in General Surgery at Haydarpaşa Numune Training and Research Hospital between 2001 and 2006. His commitment to advanced surgical techniques led him to further training at Tokyo University Hospital, Japan, in the Hepato-Biliary-Pancreatic Surgery and Artificial Organ Division under renowned experts M. Makuuchi and N. Kokudo.

Throughout his career, Dr. Özel has worked at prestigious institutions, including Istanbul University Faculty of Medicine, Haydarpaşa Numune Training and Research Hospital, and Ümraniye Training and Research Hospital. His extensive experience includes roles in ERCP and surgical endoscopy, as well as advanced laparoscopic and robotic surgery. In addition to his clinical practice, he has served as an academic faculty member at Doğuş University, contributing to the education and training of future medical professionals.

Dr. Özel holds several certifications in surgical endoscopy, including the Turkish Surgical Proficiency Certificate. His dedication to minimally invasive surgical techniques, obesity treatment, and hepatobiliary surgery has made him a sought-after specialist in his field. With a career spanning over three decades, he continues to provide high-quality, patient-centered surgical care, ensuring the best outcomes through his expertise and innovative approach.

Activities • Prevention, research and early diagnosis of cancer • Palliative care in cancer • Cytotoxic chemotherapy • Hormontherapy • Targeted treatment • Immunotherapy Education • 2004 -2010 - Istanbul University, Istanbul faculty of medicine • 2011-2015 - Istanbul University, Istanbul faculty of medicine, internal medicine specialist • 2013-2014 - Cleveland Clinic Endocrinology Department, research associate • 2016-2019 Bezmiâlem Foundation University Medical Oncology Subdivision • Dissertation: Prognostic value of absolute monocyte count in patients with mantle cell lymphoma. • Subdivision Dissertation: An effect of adjuvant chemotherapy on lipid profile and anthropometric parameters in patients with breast and colon cancer. Publications • Circulating Thyroid-Stimulating Hormone Receptor Messenger RNA as a Marker of Tumor Aggressiveness in Patients with Papillary Thyroid Microcarcinoma. Aliyev A, Gupta M, et al. Endocr  18. • The utility of peripheral thyrotropin receptor mRNA in the management of differentiated thyroid cancer. • Aliyev A, Soundararajan S, Bucak E et al. Surgery.  • Diagnostic accuracy of circulating thyrotropin receptor messenger RNA combined with neck ultrasonography in patients with Bethesda III-V thyroid cytology. Aliyev A, Patel J, Brainard J, et al. Surgery.2016 Jan;159(1):113-7. doi: 10.1016/j.surg.2015.06.063. Epub 2015 Oct 9. • Role of Urotensin-2 in 5-Fluorouracil-Related Arterial Vasoconstriction in Cancer Patients. Seker M, Aliyev A, et al. Oncol Res Treat. Epub 2018 Aug 20. • Pertuzumab, trastuzumab and taxane-based treatment for visceral organ metastatic, trastuzumab-naive breast cancer: real-life practice outcomes. Esin E, Oksuzoglu B, Bilici A, Aliyev A. Cancer Chemother Pharmacol.2019 Jan; Epub 2018 Oct 30. • Usefulness of serum M30 and M65 levels to predict response to neoadjuvant chemotherapy in patients with breast cancer. Turk HM, Aliyev A, Celik RS. Curr Probl Cancer.2019 Jul 29. pii: currproblcancer.2019.06.009. • Prognostic impact of primary tumor location on survival in metastatic colorectal cancer patients: A single center experience. Tarik Demir, Murat Araz, Altay Aliyev. Medicine Science International Medicine Journal. • Oral presentations 

Personal information

Title: Professor Doctor

Branch: Radiation Oncology

Work History:

1 GATA Military Medical Faculty

2 Gayrettepe Florence Nightingale Hospital

3 T.R. Demiroğlu Bilim University \ Associate Professor

4 T.R Demiroğlu Bilim University \ Professor

Medical Specialties and Subspecialties:

1 Head and Neck Cancers

2 Radiation Oncology

Priority treatments:

1 Prostate cancer

2 Conformal treatments

Special advanced health technologies:

1 Truebeam Stx Technology

2 Halcyons

Education

1991 - Istanbul University Istanbul Faculty of Medicine

1996 - Istanbul University Cerrahpaşa Faculty of Medicine Radiation

Oncology Specialization Training

Doctor Brenda Pastrana is a mexican surgical Oncologist. 

Medical background.

Centro Medico Nacional 20 de Noviembre Issste, Surgical Oncologist in 2020.

Title by Universidad Autónoma de México UNAM.

Surgical Residency Instituto Mexicano del Seguro Social. 2015.

Title by Universidad de Quintana Roo. 

Board Certified by Conacem from 2020 to 2025 number 2171 

Board Certified by Conacem from 2025 to 2030 number 2171

Member of SMEO. Sociedad Mexicana de Oncología. 

University teacher at Universidad Anahuac of Medicine since 2020.