Best Tumor Marker Blood Test Doctors Abroad

Dr. Osman Aktas is a general surgeon at Avicenna International Hospital in Istanbul. He completed laparoscopic surgery training in Germany. He specializes in oncological and metabolic surgeries. Dr. Aktas previously served as chief physician at several prominent military hospitals.

• Performs complex cancer surgeries like the Whipple procedure and colorectal resections.
• Treats obesity and diabetes using metabolic surgery techniques.
• Manages gastrointestinal tumors and obstructions through minimally invasive methods.
• Uses laser therapy for modern treatment of anal diseases.

Dr. Tuncay Tas is a urological surgeon at Safe Urology Clinic in Istanbul. He is among the first five experts globally to publish data on P-Shot applications. Dr. Tas specializes in urological oncology and male sexual health. He completed a fellowship in laparoscopic urology at Heidelberg University, Germany.

• Pioneered combined PRP and stem cell penile therapy in Turkey.
• Developed a certified surgical technique for penile circumference improvement.
• Performs robotic prostatectomies and kidney-sparing surgeries for cancer treatment.
• Serves as an instructor for the International Society for Stem Cells Applications.

Dr. Jaydeep Palep leads the surgical department at HCG Manavata Cancer Centre. He uses robotic and minimally invasive techniques to treat complex gastrointestinal conditions.

• Specializes in upper gastrointestinal surgery including the stomach, spleen, and biliary system
• Mastered robotic surgery during advanced training in Italy for high surgical precision
• Maintains a safety record that matches global standards for complex surgical cases
• Published multiple articles in international journals on metabolic and robotic surgery outcomes
• Regular speaker at global medical forums on advanced gastrointestinal surgical techniques

Dr. Fuad Nurili completed a fellowship at Memorial Sloan Kettering Cancer Center in New York. He is an expert in interventional radiology and interventional oncology. Dr. Nurili treats cancer and obesity using minimally invasive image-guided techniques. He currently practices at Menfis Health Novimaj in Istanbul.

• Trained at the world-renowned Memorial Sloan Kettering Cancer Center.
• Researched intra-arterial injection techniques for treating pancreatic cancer.
• Published original findings on postmortem biopsies in major medical journals.
• Expert in PET/CT, MRI area scans, and complex tumor marker analysis.

The doctor is a highly experienced medical professional with over two decades of clinical practice. Having completed medical training at Istanbul University's Faculty of Medicine in 1996, the doctor went on to specialize at the SSK Okmeydanı Training and Research Hospital in 2000.

Throughout a distinguished career, the doctor has held positions at various reputable institutions, including the Kayseri Military Hospital, SSK Yalova Regional Hospital, and Private Avicenna Umut Hospital. Most recently, the doctor has contributed expertise to Private Adatıp Kurtköy Hospital and Istanbul Medipol University Pendik Hospital, demonstrating a consistent commitment to patient care and clinical excellence across multiple healthcare settings.

Professor Serdar Bedii Omay is a hematologist-oncologist who earned his Ph.D. from Japan Mie Medical School. He performs cytogenetic analysis and tumor marker blood tests at Emsey Hospital.

• Published over 65 scientific articles in international medical journals
• Specializes in molecular hematology – the study of blood cells at a molecular level
• Operates within a major transplant unit featuring 45 high-intensity care beds
• Delivered 34 conference presentations on bone marrow transplantation outcomes
• Professor of Hematology since 2003 at Karadeniz Technical University

Dr. Rafet Eren is a hematologist at Biruni University Hospital in Istanbul. He specializes in treating leukemia, lymphoma, and myeloma. Dr. Eren is an Associate Professor with around 50 scientific publications in international journals. He received the Young Researcher Award from the Turkish Society of Hematology.

• Performs bone marrow transplants and haploidentical stem cell transplantation.
• Provides CAR T-cell therapy and biological treatments for blood cancers.
• Member of the European Society of Hematology and the Turkish Hematology Association.
• Works at Biruni University Hospital, a TEMOS-accredited facility in Turkey.

Dr. Elnur Sahibov is a radiation oncology specialist at Emsey Hospital. He provides expert oversight for tumor marker blood test screenings.

• Completed specialization training at Marmara University Faculty of Medicine
• Trained in radiation oncology to identify and track cancer markers
• Practices at the JCI-accredited Emsey Hospital in Istanbul

Dr. Nail Paksoy is an associate professor of medical oncology at Medipol Bahçelievler Hospital. He is board-certified by the European Society for Medical Oncology (ESMO). Dr. Paksoy specializes in lung, breast, and gastrointestinal cancers. He uses modern immunotherapy and targeted therapy protocols. His clinic is JCI-accredited for high safety standards.

• Served as a subinvestigator in over 8 international clinical trials for Roche and Pfizer.
• Authored over 40 research articles in journals indexed by SCI and SSCI.
• Completed dual fellowships in allergy-immunology and medical oncology.
• Treats complex sarcomas and renal cell carcinomas with systemic therapies.

Professor Birol Baytan leads pediatric hematology at Emsey Hospital. He uses tumor marker blood tests to track childhood cancers and blood disorders.

• Performed 950 bone marrow transplants for pediatric patients
• Treats solid tumors including neuroblastoma and brain tumors
• Specializes in CAR T-cell therapy and advanced immunotherapy
• Uses cytogenetic studies to identify genetic changes in cancer cells
• Published 15 articles in international medical journals

Dr. Senem Karabulut is a medical oncologist at Biruni University Hospital in Istanbul. She is a professor and holds a PhD in molecular oncology. Dr. Karabulut is certified by the European Society for Medical Oncology (ESMO) Board. She previously trained as an observer at University Hospital in New Jersey, USA.

• Specializes in immunotherapy and targeted treatments for gastrointestinal and breast cancers.
• Treats hepatobiliary system tumors, lung cancer, and genitourinary malignancies.
• Qualified by the Turkish Medical Oncology Society Board Exam.
• Practices at Biruni University Hospital, a TEMOS-accredited facility.

Dr. Ugur Yayla is an ophthalmologist at Medipol University Pendik Hospital in Istanbul. He specializes in vitreo-retinal surgery and treats complex conditions like retinopathy of prematurity. Dr. Yayla completed a specialized fellowship in medical retina at Gazi University. He works at a center that serves over 350,000 patients annually.

• Performs retinal detachment surgery and retinopathy of prematurity (ROP) procedures.
• Specializes in cataract surgery with IOL replacement and multifocal lens implants.
• Provides laser vision correction including LASIK, LASEK, and SmartSight techniques.
• Treats glaucoma using laser trabeculoplasty and surgical intervention.

Dr. Siegbert Rossol is a Fellow of the European Board of Gastroenterology. He leads medical services at Nordwest Clinic in Frankfurt where tumor marker blood tests support cancer diagnostics.

• Received the prestigious Alexander von Humboldt Scholarship for his medical research
• Completed advanced hepatology training at King's College School in London
• Specializes in removing cancerous tissue using EMR and ESD minimally invasive methods
• Holds a Master of Science in Health Management from Mannheim and Heidelberg universities
• Member of the American Association for the Study of Liver Diseases

Professor Eckhart Weidmann heads the hematology department at Nordwest Clinic. He specializes in blood disorders and uses tumor marker blood tests for cancer detection.

• Leads the hematology sector at a major German medical center
• Specializes in treating non-Hodgkin lymphoma and other blood cancers
• Focuses on precision diagnostics for blood-related conditions
• Authorized to practice medicine at the highest level of academic rank

Dr. Omer Dogru is a pediatric hematologist and oncologist at Biruni University Hospital in Istanbul. He specializes in bone marrow transplantation and childhood cancer treatments. Dr. Dogru is an active member of the European Bone Marrow Transplantation (EBMT) society.

• Performs autologous, allogenic, and haploidentical stem cell transplantations for children.
• Treats childhood solid tumors including neuroblastoma, Ewing's sarcoma, and Wilms tumor.
• Served as an Assistant Professor in the Department of Pediatrics at Marmara University.
• Practices at Biruni University Hospital, a TEMOS-accredited facility in Turkey.

Dr. Turkan Ozturk Topcu is a clinical oncologist at Biruni University Hospital in Istanbul. She maintains professional ties with the MD Anderson Cancer Center in the USA. She specializes in the treatment of breast, lung, and gastrointestinal cancers. Dr. Topcu is a member of both ESMO and ASCO.

• Completed a fellowship at the Sunnybrook Odette Cancer Center Breast Clinic in Canada.
• Treats a wide range of conditions including liver, pancreatic, and gynecological cancers.
• Held clinical roles at major institutions like Moffitt Cancer Center in the USA.
• Works at Biruni University Hospital, a TEMOS-accredited facility in Turkey.

Dr. Hilmi Apak is a pediatric hematologist-oncologist at Biruni University Hospital in Istanbul. He specializes in bone marrow transplantation, CAR T-cell therapy, and leukemia chemotherapy. Dr. Apak is the current Head of Department at Istanbul University Department of Pediatrics.

• Published over 70 international medical articles on pediatric oncology research.
• Treats complex conditions like lymphoma, neuroblastoma, and Ewing's sarcoma.
• Served as a board member of the Turkish Pediatric Society.
• Works at Biruni University Hospital, a TEMOS-accredited facility in Turkey.

Dr. Atakan Topcu is a medical oncologist at Medipol Acibadem District Hospital in Istanbul. He specializes in treating solid tumors including lung, breast, and colorectal cancers. Dr. Topcu is an Associate Professor with over 50 peer-reviewed scientific publications. He sits on the Editorial Board of the medical journal BMC Cancer.

• Expertise in immunotherapy, targeted therapies, and geriatric oncology care.
• Treats cancer-related malnutrition, cachexia, and sarcopenia.
• Maintains active membership in the European Society for Medical Oncology (ESMO).
• Works at a JCI-accredited hospital specializing in advanced oncology treatments.

Dr. Abdulkerim Yilmaz is a gastroenterologist at Medicana Sivas Hospital in Turkey. He treats digestive conditions including cirrhosis, Crohn's disease, and pancreatitis. Dr. Yilmaz performs endoscopic procedures to remove polyps from the stomach and duodenum.

He works at Medicana Sivas, a facility that treats over 110,000 patients annually. The hospital has 219 beds and a department for gastrointestinal care. Dr. Yilmaz manages chronic inflammatory bowel diseases like ulcerative colitis and Barrett's esophagus. He also treats gastric issues such as ulcers, gastritis, and gallstones.