Tumor Marker Blood Test Doctors Abroad — Page 10

Dr. Zavoloka has performed 8,000 successful surgeries and maintains a dual focus on surgical oncology and tumor marker blood test analysis.

• Heads the oncology and surgery departments at Patlazhan Clinic in Odesa
• Holds seven patents for innovative clinical techniques and surgical methods
• Treats complex conditions including breast cancer, sarcoma, glioma, and melanoma
• Defended a medical thesis as a Candidate of Medical Sciences
• Shared expertise at the ISAPS Congress in Miami and Japan

Professor Kayihan Engin is the Director of Oncological Sciences at Medicana Bursa Hospital. He manages tumor marker blood test results within complex cancer treatment programs.

• Completed a post-doctoral fellowship at Thomas Jefferson University in the USA
• Former Coordinator of Oncological Sciences at Anadolu Medical Center in affiliation with Johns Hopkins
• Conducted cancer risk research at the National Cancer Institute in Bethesda
• Specializes in gastrointestinal, gynecological, and brain tumors
• Previously served as Chairman of Radiation Oncology at Uludağ University Medical College

Professor Metin Demirkaya leads pediatric oncology at Medicana Bursa Hospital. He specializes in identifying and treating childhood cancers through precise tumor marker blood tests.

• Treats neuroblastoma, leukemia, and Ewing's sarcoma in children
• Uses PET-CT imaging to detect and stage solid tumors
• Performs bone marrow biopsies for detailed blood disorder analysis
• Installs PORT-A-CATH systems – subcutaneous devices for simpler long-term treatment access
• Former associate professor at Bursa Uludag University School of Medicine

Professor Tolga Akman leads urological oncology at Medicana Bahcelievler Hospital. He uses tumor marker blood tests to monitor prostate, bladder, and kidney cancers.

• Professor of Medicine at a leading Turkish university-affiliated hospital
• Specializes in laparoscopic urology for minimally invasive surgical treatment
• Performs both radical and partial nephrectomies for kidney cancer care
• Expert in microsurgical procedures and pediatric urological surgeries
• Trained at Istanbul University School of Medicine in surgical urology

Professor Adil Baykan is a senior surgeon at Medistate Hospital Istanbul. He specializes in oncological surgery and identifying gastrointestinal tumors through marker tests.

• Trained at the Mayo Clinic in the USA for advanced colorectal surgery
• Practiced at St. Marks Hospital in London to master specialized surgical techniques
• Senior Professor at Ankara University medical faculty – teaches new generations of surgeons
• Published numerous research articles on colon cancer in global medical journals
• Specializes in laparoscopic surgery – using small incisions for faster patient recovery

The doctor is a highly experienced specialist in the field of neurosurgery, with a focus on advanced surgical techniques for treating complex brain and spinal disorders. With over 15 years of clinical experience, the doctor has performed numerous successful surgeries, contributing significantly to the field through innovative approaches and patient-centered care.

Graduated from a prestigious medical school and completed rigorous residency and fellowship programs. The doctor is board-certified and has published extensively in peer-reviewed journals, sharing insights and advancements in neurosurgical procedures.

Dr. Svetlana Sobol is a specialist in gynecology and endocrinology at ON Clinic Kharkiv. Her work includes screening for female reproductive health through tumor marker blood tests.

• Holds a second qualification category in obstetrics and gynecology
• Graduated from Kharkiv National University named after V. N. Karazina
• Expert in gynecologist-endocrinology – the study of hormones and pelvic health
• Regularly shares medical expertise on the Healthspace YouTube channel
• Completed numerous professional training courses in women's diagnostic health

50,000+ cancer surgeries performed – Dr. Raj Nagarkar is the founder and chief of surgical oncology at HCG Manavata Cancer Centre.

• Specializes in complex breast, thoracic, and colorectal cancer cases
• Uses tumor marker blood test results to guide surgical treatment plans
• Served as a surgical oncology resident at Tata Memorial Hospital
• Professor for DNB Superspecialty Surgical Oncology – trains future cancer surgeons
• Member of the Royal College of Surgeons of Edinburgh

Dr. Bengisu Ay is an infectious diseases specialist at Medipol University Pendik Hospital in Istanbul. She focuses on viral hepatitis, diabetic foot infections, and clinical microbiology. Dr. Ay has contributed to multi-center studies on antibiotic resistance and pathogen identification. She treats complex cases at a clinic that serves 350,000 patients annually.

• Specializes in the treatment of Chronic Hepatitis C and Mediterranean spotted fever.
• Authored research on epidermal growth factor for diabetic foot wounds.
• Former physician at Acipayam State Hospital and Bozyaka Training Hospital.
• Published international research on causative pathogens in bacterial infections.

Dr. Didem Tastekin is a medical oncologist at Biruni University Hospital in Istanbul. She specializes in breast and lung cancer treatment, including stage 4 cases. Dr. Tastekin received the TUBITAK Incentive Award for her work in cancer research. She is an active member of both ESMO and ASCO.

• Awarded Best Researcher of the Year at Istanbul University Oncology Institute.
• Treats complex cases at a TEMOS-accredited university hospital.
• Coordinates oncological check-ups and screenings for both men and women.
• Expert in diagnostics including PET-MRI, tumor markers, and organ biopsies.

Dr. Cevdet Gokcek is a neurosurgeon at Medipol University Pendik Hospital in Istanbul. He specializes in brain, spine, and pediatric nerve conditions. He has treated thousands of patients for complex disorders. Dr. Gokcek is a member of the Turkish Neurosurgical Society. He previously completed a microsurgery course at Hacettepe University.

• Achieved a 95% success rate for severe brain and spine surgeries.
• Performs transnasal pituitary tumor removals and endoscopic skull base procedures.
• Authored 17 articles published in national and international medical journals.
• Completed a neuro-endoscopy workshop at Ghent University in Belgium.

Assoc. Prof. Orhan Ünal Zorba, MD, is a urologist focused on andrology and endourology. He has about 25 years of experience. He currently sees patients at Private TUSA Hospital. He started there on 8 June 2026.

His academic work includes 29 international and 13 national publications and 7 book chapters. He has given at least 9 presentations at international congresses. His studies have been presented at EAU, ESSM, ICS, and EULIS meetings. He served as Assistant and Associate Professor of Urology from 2009 to 2016. He is a member of the Istanbul Medical Chamber, the Turkish Association of Urology, the Turkish Society of Andrology, and the Eastern Black Sea Association of Urologists.

Key areas include male infertility (micro‑TESE; outcomes in 191 patients with non‑obstructive azoospermia), microsurgical varicocele repair, prostate surgery (HoLEP, TURP), endoscopic stone surgery (URS, PCNL), and uro‑oncology. He speaks English.

3,000+ surgical interventions performed – Professor Kraus is the Chief Physician at Nordwest Clinic and a specialist in hepatobiliary oncology.

• Focuses on pancreatic surgery and malignant tumors of the digestive tract
• Uses intraoperative sonography – ultrasound imaging performed during procedures for high accuracy
• Trained at Memorial Sloan-Kettering and Johns Hopkins in the USA
• Speaker at 500 global medical conferences regarding his oncological research
• Fellow of the American College of Surgeons (FACS)

Dr. Mehmet Ali Gok is an Associate Professor of General Surgery at Medipol University Pendik Hospital. He specializes in laparoscopic hernia repair and metabolic surgery. Dr. Gok has authored over 20 national and international scientific articles on surgical outcomes. He practices at a hospital with 95.4 out of 96.4 healthcare quality points.

• Certified in robotic colorectal surgery and laparoscopic hernia techniques on cadavers.
• Received specialized training from the European Hernia Society in Dubai.
• Served as a former Chief Physician at Silopi State Hospital.
• Editor of several medical books on oncological, hernia, and minimal invasive surgery.

Dr. Nihat Okcu is a gastroenterologist and gastrointestinal surgeon at Medipol University Pendik Hospital. He specializes in the treatment of complex digestive conditions and liver diseases. Dr. Okcu has published over 20 academic papers on gastric cancer and endoscopic diagnosis. He serves at a hospital with a 95.4% healthcare quality score.

• Performs laparoscopic anti-reflux surgery and small intestine resections.
• Expert in gastric polyps removal and duodenal polyp excision.
• Treats chronic conditions like cirrhosis, Crohn’s disease, and ulcerative colitis.
• Provides diagnostic gastroscopy with biopsy and ultrasound-guided procedures.

Dr. Yilmaz Yozgat is a pediatric cardiologist at Medipol University Pendik Hospital in Istanbul. He specializes in treating children with complex heart and vascular diseases. Dr. Yozgat trained at the prestigious Gülhane Military Medical Academy. He manages challenging cases like dilated cardiomyopathy and pulmonary hypertension in young patients.

• Performs diagnostic heart check-ups, exercise tests, and carotid artery ultrasounds.
• Treats childhood cardiac conditions including arrhythmias and coronary artery disease.
• Served as a faculty member at Bezmialem Foundation University.
• Practices at a center featuring 21 intensive care units for newborns.

Dr. Teyyub Hesenov is a neurosurgeon at Melhem International Hospital in Baku. He focuses on neuromodulation and complex tumor resections. Dr. Hesenov was the first to perform Parkinson’s surgery in Azerbaijan. He earned his medical degree and specialist training at major Turkish universities. His practice includes adult and pediatric neurosurgery.

• Specializes in deep brain stimulation (DBS) for movement disorders.
• Performs baclofen pump and vagal nerve stimulator implantations.
• Treats brain and spine tumors using minimally invasive techniques.
• Authored over 10 scientific papers in international journals like World Neurosurgery.

Dr. Murat Duzgun is a neurosurgeon at Can Hospitals Turkey in İzmir. He specializes in spine surgery and endoscopic brain tumor removal. Dr. Duzgun uses neuronavigation for high-precision brain surgery. He performs fully closed procedures for herniated discs and spinal fractures.

• Performs kyphoplasty and vertebroplasty for spinal fracture treatment.
• Treats scoliosis, ankylosing spondylitis, and nerve compression.
• Expert in minimally invasive pain interventions like radiofrequency and laser.
• Treats pediatric neurosurgery cases including hydrocephalus and congenital anomalies.

Prof. Dr. Abdullah Sakin is a professor of medical oncology. He treats solid tumors, including lung, breast, gastrointestinal, genitourinary, gynecologic, head and neck cancers, and melanoma.

He delivers personalized, evidence-based care. His treatments include chemotherapy, targeted therapy, immunotherapy, hormone therapy, and precision oncology. He has authored more than 200 scientific publications and takes part in international clinical research. This work advances patient-centered cancer care.