General Surgery Prof. Dr. Güralp Onur Ceyhan
✓ Medically verified profile General Surgery
Prof. Dr. Güralp Onur Ceyhan
✓ Medically verified profile 27+ years experienceLanguages: Turkish, EnglishOnline consultationAcibadem Maslak Hospital · İstanbul
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Prof. Dr. Güralp Onur Ceyhan is a General Surgeon at Acıbadem Maslak Hospital, treating pancreatic, liver and biliary tract diseases as well as digestive system conditions. His clinical focus includes robotic surgery, liver and biliary cancers, and anorectal conditions such as haemorrhoids and anal fissures.
Profile
About Prof. Dr. Güralp Onur Ceyhan
Prof. Dr. Güralp Onur Ceyhan is a General Surgeon at Acıbadem Maslak Hospital, with clinical interests in pancreatic, liver and biliary tract diseases, digestive system surgery, robotic surgery, and anorectal conditions. His areas of focus include liver cancer, gallbladder and bile duct cancers, cholecystitis, inguinal hernia, anal fissure and haemorrhoids.
He graduated from the Faculty of Medicine at Westfälische Wilhelms University and developed his surgical career at Heidelberg University and Klinikum rechts der Isar at the Technical University of Munich. He became Professor of General Surgery in 2016 and held leadership roles in hepatobiliary and pancreatic units and pancreatic research centres in Germany before joining Acıbadem Healthcare Services in 2019.
International patients can consult Prof. Dr. Ceyhan at Acıbadem Maslak Hospital for evaluation and surgical care related to pancreatic, liver, bile duct and digestive system conditions. His practice also includes robotic surgery and the treatment of gallbladder disease, hernias, haemorrhoids and other anorectal disorders.
Clinical Focus
Areas of Expertise
Conditions treated and procedures performed by this specialist.
Pancreatic diseasesLiver diseasesFatty liver diseaseLiver failureRobotic surgeryDigestive system surgeryLiver cancerAnal fissureHaemorrhoidsAnorectal diseasesInguinal herniaCholecystitis
Specialisation
Subspecialties
- Treatment of Pancreas, Liver and Biliary Tract Diseases
- Robotic Surgery
- Digestive System Diseases and Surgery
- Treatment of Hemorrhoids and Anorectal Diseases
Background
Education
- 2016Department of General Surgery, Prof. Dr., Klinikum rechts der Isar, Munich Technical University, Munich, Germany
- 2010Department of General Surgery, Rechst Der Isar Clinic, Munich Technical University, Munich, Germany
- 2002Westfälische Wilhelms University Faculty of Medicine
Career
Professional Experience
- 2019Acıbadem Healthcare Services
- 2019Head of the Liver, Biliary Tract and Pancreas Unit, Acıbadem Healthcare Services
- 2019Director of the Pancreatic Cancer Research Center, Acıbadem Mehmet Ali Aydınlar University, İstanbul,Türkiye
- 2015–2018Director of the Pancreas Research Center, Department of General Surgery, Klinikum rechts der Isar, Munich Technical University, Munich, Germany
- 2014–2018Second Full Professor, Department of General Surgery, Klinikum rechts der Isar, Munich Technical University, Munich, Germany
- 2014–2018Head of the Liver, Biliary Tract and Pancreas Unit, Department of General Surgery, Klinikum rechts der Isar, Munich Technical University, Munich, Germany
- 2013Liver, Biliary Tract and Pancreas Unit, Memorial Sloan-Kettering Cancer Center, New York, USA
- 2007–2018Head of the Pancreas Research Center / Pancreatic neuropathy and pain Unit, Department of General Surgery, Klinikum rechts der Isar, Munich Technical University, Munich, Germany
- 2007–2008Department of General Surgery, Klinikum rechts der Isar, Munich Technical University, Munich, Germany
- 2002–2007European Pancreas Research Center / Pancreas Molecular Biology and Surgery Center, Department of General Surgery, Heidelberg University, Heidelberg, Germany
- 2002–2007Department of General Surgery, Heidelberg University, Heidelberg, Germany
- 1999–2002Pancreatic Diseases Research Center - Gastroenterology Unit, Westfälische Wilhelms University Münster, Münster, Germany
Affiliations
Professional Memberships
- International Association of Pancreatology/ IAP
- Deutsche Gesellschaft für Allgemein- und Viszeralchirurgie/ DGAV
- Turkish Surgical Association/ TCD
- Vereinigung der Bayerischen Chirurgen/ VBC
- American Pancreatic Association/ APA
- European Pancreatic-Club/ EPC
- International Hepato-Pancreato-Biliary Association/ IHPBA
- Deutscher Pankreas-Club/ DPC
- European Digestive Surgery/ EDS
- Deutsche Gesellschaft für Chirurgie/ DGCH
Research
Selected Publications
- R0 Versus R1 Resection Matters after Pancreaticoduodenectomy, and Less after Distal or Total Pancreatectomy for Pancreatic Cancer Friess H, Ceyhan GO. Ann Surg 2018; 268(6): 1058-1068 Demir IE, Jäger C, Schlitter AM, Konukiewitz B, Stecher L, Schorn S, Tieftrunk E, Scheufele F, Calavrezos L, Schirren R, Esposito I, Weichert W,
- Pancreatic stump closure techniques and pancreatic fistula formation after distal pancreatectomy: meta-analysis and single-center experience. PlosOne 2018; 13(6): e0197553 Tieftrunk E, Demir IE, Schorn S, Sargut M, Scheufele F, Calavrezos L, Schirren RM, Friess H, Ceyhan GO.
- Effect of preoperative biliary drainage on bacterial flora in bile of patients with periampullary cancer Br J Surg 2017; 104(2): e182-e188 Scheufele F, Aichinger L, Jager C, Demir IE, Schorn S, Sargut M, Erkan M, Kleeff J, Friess H, Ceyhan GO.
- Activated Schwann cells in pancreatic cancer are linked to analgesia via suppression of spinal astroglia and microglia Costello E, Algül, H, Friess H, Ceyhan GO. Gut 2016; 65(6): 1001-1014 Demir IE, Tieftrunk E, Schorn S, Saricioglu C, Pfitzinger P, Teller S, Wang K, Waldbair C, Kurkowski M, Wörmann S, Shaw V, Kehl T, Laschinger M;
- Investigation of Schwann cells at neoplastic cell sites before the onset of cancer invasion J Natl Cancer Inst. 2014; 106(8) Demir IE, Boldis A, Pfitzinger PL, Teller S, Brunner E, Klose N, Kehl T, Maak M, Lesina M, Laschinger M, Janssen KP, Algül H, Friess H, Ceyhan GO
- The severity of neural invasion is associated with shortened survival in colon cancer. Clin Cancer Res 2013;19(1): 50-61 Liebl, F, Demir IE, Rosenberg R, Boldis A, Yildiz E, Kujundzic K, Kehl T, Dischl D, Schuster T, Maak M, Becker K, Langer R, Laschinger M, Friess H,
- The severity of neural invasion is a crucial prognostic factor in rectal cancer independent of neoadjuvant radiochemotherapy Ann Surg 2010; 252(5):797-804; ESA-Manuscript 2010 Ceyhan GO, Liebl F, Maak M, Schuster T, Becker K, Langer R, Demir IE, Hartel M, Friess H, Rosenberg R.
- Nerve growth factor and Artemin are paracrine mediators of pancreatic neuropathy in pancreatic adenocarcinoma Ann Surg 2010; 251(5): 923-31 Ceyhan GO, Schäfer K-H, Kerscher A, Rauch U, Demir IE, Kadihasanoglu M, Böhm C, Müller MW, Büchler MW, Giese NA, Erkan M, Friess H.
- Pancreatic neuropathy and neuropathic pain – a comprehensive pathomorphological study in 546 cases Gastroenterology 2009; 136(1): 177-186.e1 Ceyhan GO, Bergmann F, Kadihasanoglu M, Altintas B, Demir IE, Hinz U, Müller MW, Giese T, Büchler MW, Giese NA, Friess H.
- The neurotrophic factor artemin influences the extent of neural damage and growth in chronic pancreatitis Gut 2007; 56(4): 534-44 Ceyhan GO, Bergmann F, Kadihasanoglu M, Erkan M, Park W, Hinz U, Müller MW, Giese T, Büchler MW, Giese NA, Friess H.
- Phd Thesis: ”Administration of magnesium reduces the severity of cerulein induced acute pancreatitis and premature activation of proteases in isolated acini cells. Westfälische Wilhelms University, WWU-Münster, Münster, Germany
Good to Know
Frequently Asked Questions
What is Dr. Güralp Onur Ceyhan's specialty?
Dr. Güralp Onur Ceyhan is a specialist in General Surgery at Acibadem. For a personalised assessment, the Acibadem international patient team can review your medical history and reports and explain the suitable next steps.
Which hospital does Dr. Güralp Onur Ceyhan practise at?
Dr. Güralp Onur Ceyhan sees patients at Acibadem Maslak Hospital in İstanbul. The international patient team can confirm current availability and help you plan a consultation or visit.
What languages can I use when consulting Dr. Güralp Onur Ceyhan?
Consultations with Dr. Güralp Onur Ceyhan are supported in Turkish and English. In addition, Acibadem provides multilingual coordination and interpreter support so international patients can communicate clearly throughout their care.
How can I book an appointment with Dr. Güralp Onur Ceyhan?
You can request an appointment with Dr. Güralp Onur Ceyhan using the appointment form on this page, or by contacting the Acibadem international patient team by phone or WhatsApp. After you share your details, the team checks availability and confirms your appointment, usually within 24 hours.
Is an online video consultation available with Dr. Güralp Onur Ceyhan?
Yes. Dr. Güralp Onur Ceyhan offers online video consultations, so you can discuss your condition and reports with the specialist before making any travel arrangements. The international patient team can help you schedule a secure video visit.
How many years of experience does Dr. Güralp Onur Ceyhan have?
Dr. Güralp Onur Ceyhan has around 27 years of professional experience in General Surgery. A summary of education, experience and professional memberships is available on this page.
Can international patients arrange treatment with Dr. Güralp Onur Ceyhan?
Yes. Acibadem supports international patients end to end — from the first consultation and treatment planning through appointment scheduling, interpretation during the stay and follow-up after returning home. Sharing your case for an initial assessment is free of charge.
How do I get a second opinion involving Dr. Güralp Onur Ceyhan?
You can request an independent review of your diagnosis and proposed treatment. Share your medical reports through the consultation or "Ask a Doctor" form on this site, and the team will arrange a specialist review and explain the available options.
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