Best Comprehensive diagnosis of Сolorectal Pathology doctors: TOP 91 doctors

The doctor graduated from Cerrahpaşa School of Medicine, Istanbul University in 2000 and completed residency in Internal Medicine at Ankara University by 2004, earning the title of Internist. With a prolific academic career, the doctor has contributed 19 international papers, 6 local papers, and presented at 25 local and international congresses. The doctor received the Best Verbal Presentation and Best Poster Awards at the 7th International Gastrointestinal System Cancers Congress.

Specializing in advanced endoscopic procedures, the doctor focuses on treatments such as POEM for achalasia, ESD for early-stage gastrointestinal cancers, ERCP for bile duct treatment, Z-POEM for Zenker’s Diverticulum, and G-POEM for gastroparesis.

The doctor is a highly regarded oncologist at the Anadolu Medical Center, specializing in medical oncology and chemotherapy. After obtaining a medical degree from Ankara University in 2005, the doctor completed specialty training in internal medicine at Istanbul University and further specialized in medical oncology at Marmara University by 2017. The doctor has led the medical oncology unit at Haydarpaşa Numune Training and Research Hospital and has participated in numerous international clinical studies. The doctor focuses on a wide range of cancers, including breast, urological, lung, and gastrointestinal cancers, among others.

The doctor is a member of several prestigious oncology societies, including the Turkish Society of Medical Oncology, the European Society of Medical Oncology, and the American Society of Medical Oncology. The doctor has participated in advanced training programs globally, including programs at Oxford University and ESMO.

The doctor graduated from the School of Medicine at Hacettepe University and completed residency at Istanbul Sisli Etfal Training and Research Hospital, followed by a fellowship at the Hacettepe University Cancer Institute.

Specializing in oncology, the doctor has extensive experience in treating various cancers, including breast, testicular, ovarian, lung, head and neck, and gastrointestinal cancers.

The doctor has worked at prestigious institutions such as The University of Texas MD Anderson Cancer Center, Hitit University Corum Training Hospital, and Medical Park Hospital.

Prof. Dr. Engin Tutar was born in Istanbul in 1964. He completed his primary and secondary education at Istanbul Erkek Lisesi between 1975 and 1982, and graduated from Istanbul University Istanbul Faculty of Medicine in 1988. In December of the same year, he started his specialization in the Department of Pediatrics at Dr. Lütfi Kırdar Kartal Training and Research Hospital, becoming a specialist in Pediatrics in February 1993. He completed his subspecialty training in Pediatric Gastroenterology, Hepatology, and Nutrition at Marmara University Faculty of Medicine, becoming a subspecialist in 2006. He served as the Assistant Chief Physician and Acting Chief Physician at the 2nd Pediatric Clinic of Dr. Lütfi Kırdar Kartal Training and Research Hospital between 2010 and 2012. In May 2012, he transferred to Marmara University Faculty of Medicine, where he became an Associate Professor in Pediatric Gastroenterology, Hepatology, and Nutrition in 2014, and a Professor in 2020. Alongside his international and national article authorships, he has given over 50 presentations at congresses/courses/association meetings. He retired in May 2024 while serving as the head of the Pediatric Gastroenterology, Hepatology, and Nutrition department at Marmara University Faculty of Medicine. As of June 2024, he is accepting patients at Hisar Hospital Intercontinental.

MEDICAL INTERESTS

• Healthy child monitoring
• Growth and nutritional disorders
• Approach to patients with abdominal pain
• Gastroesophageal reflux
• Chronic diarrhea and chronic constipation
• Celiac disease
• Inflammatory bowel disease
• H. pylori infection-related and unrelated gastritis and ulcers, patients with gastric bleeding
• Liver, gallbladder, and pancreas diseases
• Acute and chronic gastrointestinal infections
• Diagnostic upper and lower gastrointestinal endoscopy
• Therapeutic upper and lower gastrointestinal endoscopy (esophageal variceal bleeding, gastric and small bowel ulcer bleeding, polypectomy)
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Dr. Sertkaya graduated from Konya Meram Science High School in 2001 and entered Gazi University Medical Faculty the same year, graduating in 2008. He completed his urology specialization at Haydarpaşa Numune Training and Research Hospital in 2014, becoming a urology specialist.

Since becoming a specialist, he has focused on the sub-branch of Andrology, attending various training sessions and conferences and performing surgeries with some of the world's leading Andrology professors. In 2017, he passed the written and oral proficiency exams conducted by the European Association of Urology, earning the title of "FEBU."

In 2020, Dr. Sertkaya achieved the rank of Associate Professor of Urology. His journey in Urology and Andrology, which began in 2008, continues at the Andro Expertise Male Health and Aesthetics Center, which he founded in 2022. He sees patients in his own clinic and performs surgeries at affiliated hospitals.

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.

Education:

• Bachelor of Science (MD): Faculty of Medicine, Uludag University, 1989

Specialized Education and Experience:

• General Surgery Specialist Degree: Ankara Numune Training and Research Hospital, 1997
• Fellowship: Gastroenterology Surgery, Türkiye High Specialization Hospital, 2005

Academic Career:

• Associate Professor: General Surgery, Inonu University, 2011
• Professorship: General Surgery, İnönü University, 2017

Education and Academic Titles

• Hacettepe University Faculty of Medicine – Medical Degree, 1992
• Başkent University Faculty of Medicine – General Surgery Residency, 1995
• Ankara Numune Training and Research Hospital – General Surgery Residency, 2000
• Gaziantep University Faculty of Medicine – Assistant Professor of General Surgery, 2007
• Interuniversity Council – Associate Professorship, 2018
• Istanbul Aydın University – Professorship, 2023
• Second Bachelor’s Degree: Anadolu University – Public Administration, 2008
• Master’s Degree: Akdeniz University – Health Law, 2023

Prof. Amos Toren, MD, PhD, MHA, is a pediatric hemato-oncologist and BMT specialist. He served as Director of Pediatric Hemato-Oncology and BMT at Sheba Medical Center.

He is board certified in Pediatrics, Pediatric Hemato-Oncology, and Bone Marrow Transplantation. He holds a PhD in Human Genetics. He was Head of the Hematology Division at Tel Aviv University for two terms. He is a member of ASH, COG, ESPHI, EBMT, and CIBMTR. He also serves on the Ministry of Health Cord Blood Committee.

He led one of Israel’s most advanced pediatric oncology and BMT programs. The program treated children and young adults. His focus includes leukemia and lymphoma, immunodeficiencies, and rare cancers. He specializes in BMT and CAR T-cell therapy.

His translational research covers CAR T cells, cytokine-induced killer cells, pediatric brain tumors, and targeted therapies. He has worked with St. Anna, the NIH, and St. Jude. His publications include studies on pediatric SCT prophylaxis and PARP resistance.

General and Digestive System Surgeon. Focus on minimally invasive colorectal, proctologic, and abdominal wall surgery. Associate Head, Infanta Elena University Hospital (2021–). Associate Surgeon, Fundación Jiménez Díaz (2013–).

Accreditations: PhD in Surgery, summa cum laude (UAM). Certified in robotic surgery (Da Vinci X/Xi/5). Advanced training in laparoscopic general surgery (IRCAD, Strasbourg). Specialist in General and Digestive Surgery (Fundación Jiménez Díaz).

Achievements: Researcher (2013–). Author of a patent for an abdominal wall prosthetic implantation system (2021). Co‑author of the Rectal Obturator utility model (2021). Peer reviewer, International Journal of Surgery Case Reports (2024–). Thesis tutor (2023–). Publications in Cirugía Española, Experimental Biology and Medicine, Histology and Histopathology, and The American Journal of Surgery. Member of AEC, AECP, and ICOMEM.

Dr. Andrej Orságh is a gastroenterologist, certified in 2015. He has worked at the Gastroenterology Department of the National Cancer Institute (NOÚ) since 2016. Since 2019 he has been the institute’s specialist consultant for colorectal cancer screening. He leads the colorectal cancer screening working group of the Slovak Gastroenterological Society. He is vice-chair of its Endoscopy Section and chair of its Oncology Section.

He graduated from Comenius University in 2009. He trained at the Gastroenterology Clinic of the University Hospital in Bratislava and at the Slovak Medical University. He shares his expertise at professional conferences and in publications. He also teaches basic and advanced endoscopic techniques in NOÚ courses.

Pichai Kittipanyaworakul, M.D., is an internist. He specializes in gastroenterology and hepatology.

Education: Doctor of Medicine (M.D.), Faculty of Medicine, Chiang Mai University.

Accreditations: Diploma in Internal Medicine, Chulalongkorn Memorial Hospital, Thai Red Cross Society. Diploma in Internal Medicine (Gastroenterology and Hepatology), Faculty of Medicine Ramathibodi Hospital, Mahidol University.

Dr. Juraj Letkovsky has been a gastroenterologist at the Gastroenterology Department of the National Cancer Institute (NOÚ) since 2017. He graduated in medicine in 2012 and earned a PhD in internal medicine in 2016. He obtained specialization in gastroenterology in 2018.

His practice focuses on advanced endoscopic diagnosis and treatment of digestive tract tumors. He performs endosonography and ERCP for pancreatic and biliary diseases.

He serves on the Young Gastroenterologists, Endoscopy, and Oncology sections of the Slovak Gastroenterology Society. He is a co-author of an ongoing multicenter study on colonoscopy quality in Slovakia. He holds certificates in diagnostic and interventional esophagogastroduodenoscopy (2022) and endoscopic retrograde cholangiopancreatography (2023).

Dr. Daniela Osuská is a gastroenterologist. She graduated from the First Faculty of Medicine, Charles University, in 2010. From 2010 to 2019 she worked as a secondary physician at the Internal Medicine Clinic of Nitra University Hospital. There she began performing endoscopies. Since 2019 she has worked at the Gastroenterology Department of the National Cancer Institute. She earned her gastroenterology specialization in 2021.

She serves on the supervisory board of the Oncology Section of the Slovak Gastroenterological Society and the Section of Young Gastroenterologists. She publishes and presents her work in Slovakia and abroad. She also trains physicians in endoscopic techniques.

Dr. Boris Pekárek is a gastroenterologist. He graduated from the Faculty of Medicine, Comenius University in Bratislava in 2002. He worked at the Internal Medicine Clinic in Trnava from 2002 to April 2010. He obtained his specialization in gastroenterology in 2008.

Since April 2010, he has worked at the Gastroenterology Department of the National Cancer Institute. He has led the department since 2017. He completed several specialized training courses abroad. He focuses on endoscopic diagnosis and treatment of early tumors of the esophagus, stomach, colon, and rectum.

He served as chair of the Oncology Section of the Slovak Gastroenterological Society from 2018 to 2024. He is the current chair of its Endoscopy Section and a member of the Society’s committee. He publishes, lectures at conferences, and trains basic and advanced endoscopic techniques in Slovakia and abroad.

Dr. Bilal Ergul, MD, is a pioneering force in the field of gastroenterology.  

His innovative treatment protocols have transformed the lives of many patients, including a remarkable case where he successfully treated a patient with a Peroral Endoscopic Myotomy (POEM) surgery.

Dr. Bilal Ergul, often says, ‘Healing is more than treating a condition; it’s about restoring hope and improving lives.’ This philosophy is evident in every aspect of his work, making his and his team truly inspirational figure in the medical community."
He has authored around 100 publications in different academic topics

Education and Specialization

• Ankara University Faculty of Medicine – Medical Education
• Ankara University Faculty of Medicine – General Surgery Specialization
• Akdeniz University Faculty of Medicine – Associate Professorship
• Akdeniz University Faculty of Medicine – Professorship

Professional Memberships
• Turkish Medical Association
• Mediterranean Health Foundation
• Akdeniz University Development and Health Foundation
• Transplantation Organizations Coordination Association
• National Surgical Association

Education and Specialization

• Faculty of Medicine, Hacettepe University
• 1999 - Akdeniz University, Faculty of Internal Medicine, Internal Medicine Specialization Training
• Internal Medicine Specialization Training in the USA, Akdeniz University (2013 - 2014)
• Internal Medicine Specialization Training in the USA (2013 - 2014) - Medical Oncology Department
• Akdeniz University, Faculty of Medicine, Department of Medical Oncology (Received Associate Professorship title)

Work Experience

• 2009 - Kayseri Training and Research Hospital, Hospital
• Acıbadem Kayseri
• 2017 - 2018 - Lara Private Anadolu Hospital
• 2018 - Medical Park Antalya Hospital Complex

Expertise

• Diagnosis of organ tumors
• Chemotherapy in cancer treatment
• Targeted cancer therapies
• Immunotherapy in cancer treatment
• Next-generation genetic research in cancer treatment
• Complementary medicine in cancer treatment
• Medical oncology

Dr. Almog Ben-Yaacov is an Attending Surgeon in the Department of General and Oncological Surgery (Surgery C) at Sheba Medical Center. He specializes in cytoreductive surgery (CRS) with hyperthermic intraperitoneal chemotherapy (HIPEC). His clinical focus includes gastric cancer, sarcoma, and complex colorectal malignancies. Since 2018, he has performed more than 200 HIPEC procedures.

MD, Semmelweis University, 2006, with honors. Training in cardiothoracic surgery at Sheba Medical Center. Residency in general surgery at Montefiore (Albert Einstein) and at Rabin (Beilinson). Board-certified in General Surgery and in Surgical Oncology.

Advanced training includes ESSO-certified HIPEC in Hamburg. Microwave liver ablation in Reims. NanoKnife at King’s College London. Advanced surgical oncology at Memorial Sloan Kettering (2019). His publications cover CRS+HIPEC outcomes and Hartmann’s reversal.

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.