Mustafa Ondzhel
- 24 years of experience
- Location: Turkey, Istanbul
Professor of oncosurgery and proctology
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Professor of oncosurgery and proctology
Dr. Saban Sec is a medical oncologist with experience at leading hospitals, including Haseki Training and Research Hospital, Prof. Dr. Cemil Taşcıoğlu City Hospital, and Bahçelievler Medikalpark Hospital. He currently represents specialist physicians in the Turkish Medical Oncology Association. He is also a member of the Istanbul Medical Chamber and the Turkish Medical Oncology Association.
Dr. Sec treats breast, lung, gastrointestinal, prostate, urogenital, head and neck cancers, as well as sarcomas and rare tumors. He has published many peer-reviewed articles on cancer prognosis, treatment outcomes, and survival rates. His research includes studies with large patient groups, such as 138 patients with HER2-positive metastatic gastric cancer. Dr. Sec focuses on prognostic factors and treatment responses in different cancers. He is dedicated to improving cancer care.
The doctor is a highly experienced dermatologist with over 15 years of clinical practice focusing on skin disorders, cosmetic dermatology, and laser treatments. They have published multiple peer-reviewed articles in leading dermatology journals and have been a speaker at international conferences. The doctor is board-certified in dermatology and has completed advanced training in dermatosurgery. They are committed to patient-centered care and stay updated with the latest advancements in dermatological treatments.
The doctor is an oncologist specializing in the treatment of breast, lung, and gastrointestinal cancers. Currently, the doctor practices at Istinye Liv University Hospital.
With a career spanning multiple esteemed institutions, the doctor has served as an Internal Medicine Specialist at Malatya State Hospital, a physician at Ankara Oncology Clinic, and a member of the Oncology Department at Erzurum Regional Training and Research Hospital.
The doctor graduated from the Faculty of Medicine at Selcuk University and achieved the title of Associate Professor in 2016.
Infertile Couple Assessment
Reproductive Difficulties
Functional Medicine
Polycystic Ovarian Disease
Endometriosis
In Vitro Fertilization (IVF)
Infertility
Urinary Incontinence
Sexual Therapy
Sexual Dysfunction
Genital Aesthetics
Laparoscopic Surgery
Diyarbakır Ziya Gökalp Super High School
1995 – 1999, Diyarbakır
Dicle University, Faculty of Medicine
Medical Education
1999 – 2005, Diyarbakır
Dicle University, Faculty of Medicine
Department of Physical Medicine and Rehabilitation
Specialization Training
2005 – 2007, Diyarbakır
Kanuni Sultan Süleyman Teaching and Research Hospital
Department of Obstetrics and Gynecology
Specialization Training
2007 – 2012, Istanbul
University of Health Sciences
Bakırköy Dr. Sadi Konuk Teaching and Research Hospital
Research Assistant
2012 – 2017
Istanbul Aydın University, Faculty of Medicine
Department of Obstetrics and Gynecology
Assistant Professor
2017 – 2019
Istanbul Aydın University, Faculty of Medicine
Department of Obstetrics and Gynecology
Associate Professor
2019 – Present
Assisted Reproductive Therapy Certification – 2019
IAÜ VM–Medical Park Florya IVF Center
Turkish Gynecology and Obstetrics Association
Specializations
Nose Aesthetics Aesthetics
Facial Applications in Surgery
Breast Aesthetics
Body Shaping Aesthetics
liposuction
Botox-Filling-Mesotherapy Procedures
Dr. Irfan Cicin is a Professor of Medical Oncology at the Trakya University Faculty of Medicine (2015–present). He has over 20 years of medical oncology experience and has held academic roles since 2010.
Education: MD, Istanbul University – Cerrahpaşa (1991–1997). Residency in Internal Medicine, Trakya University (1997–2002). Fellowship in Medical Oncology, Trakya University (2002–2004).
Practice: Medical Oncologist, Trakya University (2005–2008). Medical Oncologist, Elazığ Training and Research Hospital (2008–2010). Associate Professor of Medical Oncology, Trakya University (2010–2015). He previously served as a physician in the Turkish Air Force at Etimesgut Military Hospital (2004–2005).
Dr. Meryem Eken is an obstetrician-gynecologist and IVF specialist. She earned her M.D. and completed her residency at Istanbul University. She completed IVF clinical training at Zeynep Kamil in 2017. She led the IVF Unit at Hisar Intercontinental Hospital from 2020 to 2025. She heads the IVF Unit at Bahçeşehir University Medical Park Göztepe Hospital. She started in 2025. She has served on the faculty of Üsküdar University since 2024. She became a professor at Biruni University in 2025.
Her clinical focus includes infertility, intrauterine insemination (IUI), natural-cycle IVF, hysteroscopy, endometriosis, and minimally invasive myomectomy. She has authored or co-authored more than 30 peer-reviewed international articles. Several appeared in SCI and SSCI journals. In 2016, she received First Prize for an oral presentation from the Turkish Society of Gynecology and Obstetrics.
Assoc. Prof. Atakan Topçu, M.D., is a medical oncologist at Medipol University and Medipol Acıbadem Regional Hospital. He treats solid tumors, including lung, breast, colorectal, gastric, and neuroendocrine cancers. His work also covers targeted therapies, immunotherapy, geriatric oncology, and cancer-related malnutrition, cachexia, and sarcopenia.
He has authored more than 50 peer-reviewed papers. Recent work includes a 2024 Frontiers in Medicine study on geriatric syndromes and a 2023 Future Oncology paper on sarcopenia and anxiety in lung cancer. He has also published on the CONUT score in breast cancer and on malnutrition in HER2-negative metastatic gastric cancer.
Dr. Topçu serves on the Editorial Board of BMC Cancer. He is a member of the Turkish Society of Medical Oncology, ESMO, and the Turkish Geriatrics Society. Education and training: M.D., Uludağ University; residency in Internal Medicine, Marmara University; fellowship in Medical Oncology, Bezmialem Vakıf University.
Dr. Ercan Ozden is a specialist in internal medicine and medical oncology. He earned his medical degree and completed his residency at Istanbul University, Cerrahpaşa Faculty of Medicine. He later received a subspecialty in medical oncology at Kocaeli University Faculty of Medicine from 2016 to 2020.
Dr. Ozden has worked in medical oncology at Şırnak State Hospital. He has also served as an internal medicine specialist at Bağcılar Private Safa Hospital and Küçükçekmece Batı Bahat Hospital. He has extensive clinical experience in both internal medicine and oncology.
Prof. Mesut Polat, MD. Obstetrics and Gynecology; Gynecologic Oncology. Expertise: gynecologic oncology; advanced and minimally invasive gynecologic surgery; high‑risk obstetrics; placenta accreta spectrum; medical and surgical management of postpartum hemorrhage.
Professor at Medipol Acıbadem District Hospital (2019–2025). Former obstetrics and gynecology specialist at Istanbul Medeniyet University Göztepe and Zeynep Kamil Hospitals. Administrative lead at Zeynep Kamil (2015–2016). Teaches undergraduate and postgraduate students. Co‑supervised theses in 2016. Member of the Turkish Society of Obstetrics and Gynecology.
Author of 19 international peer‑reviewed papers indexed in SCI, SCI‑Expanded, and SSCI. Topics include cesarean myomectomy, frozen section in endometrial cancer, urinary outcomes after hysterectomy, placenta percreta, and tamoxifen‑related uterine sarcoma. Presented at international congresses in 2016 and national congresses in 2015–2016. Awards include Certificates of Appreciation from the Republic of Türkiye Ministry of Health (2015, 2016).
Urologist, Oncosurgeon
Assoc. Prof. Ayşe İrem Yasin, M.D., is a medical oncologist who specializes in solid tumors. Her clinical focus includes breast, lung, gastrointestinal, gynecologic, and urologic cancers. She also treats brain and other CNS tumors, soft tissue sarcomas, head and neck cancers, adenocarcinomas, melanoma, Merkel cell carcinoma, and cancers of unknown primary. She practices at Medipol Acıbadem District Hospital (2025–present). She previously worked at Şişli Etfal Training and Research Hospital (2023–2025).
She completed a Medical Oncology fellowship at Bezmialem Vakıf University (2019–2022). This followed an Internal Medicine residency at the same institution (2012–2016). Her international experience includes the Breast Cancer Unit at the University of Piemonte Orientale in Novara (2022). She also trained at Basel University Hospital, Cleveland Clinic, and Harvard Medical School. She holds the ESMO Board Certificate (2022).
Dr. Muhammed Mustafa Atci is an Associate Professor of Medical Oncology at İstinye University, Liv Hospital Topkapı (2025–present). He previously served as Associate Professor and Education Coordinator at Prof. Dr. Cemil Taşcıoğlu City Hospital (2023–2025). He was also a Medical Oncologist there (2018–2021).
He has been a member of ASCO and the Turkish Society of Medical Oncology since 2018. He is the author or co-author of 19 peer-reviewed international papers on colon, breast, gastric, pancreatic, lung, thyroid, sarcoma, and colorectal cancers.
Notable works include a multicentre study on stage IIB colon cancer survival (Journal of Chemotherapy). He also studied the De Ritis ratio for lung metastasis in testicular cancer (Current Urology). His prognostic studies used PET/CT, MSI, lymph node ratio, and metabolic tumor volume.
The doctor completed specialization training in Radiation Oncology at Marmara University Faculty of Medicine from 2012 to 2016. Prior to this, the doctor completed an undergraduate degree in Medicine, taught in English, at the same institution from 2004 to 2011. The doctor has a strong foundation in medical education, beginning with high school education at Sixteen Numbered Shirvan School in Azerbaijan from 1998 to 2004.
Istanbul University Cerrahpaşa Faculty of Medicine, 2002
Istanbul Fatih Sultan Mehmet Training and Research Hospital, Internal Medicine, 2010
Istanbul University Oncology Institute (Çapa), Medical Oncology, 2015
Medipol University Faculty of Medicine, Phytotherapy Education, 2018
University of Health Sciences, Vocational School of Health, Molecular Oncology, PhD Program, PhD, 2023
University Hospital, Newark, New Jersey, USA, Observer (2003-2004)
Siirt State Hospital, Internal Medicine (2010-2011)
Siirt State Hospital, Medical Oncology (2015)
Bakırköy Dr. Sadi Konuk Training and Research Hospital, Medical Oncology (2015-2018)
Istanbul University, Istanbul Faculty of Medicine, Department of Internal Medicine, Medical Oncology, (Professor Doctor) (2018-Present)
Forensic Medicine 3. Specialization Board, Medical Oncology, Full Member (2019-Present)
Liv Hospital, Ulus, Park-time, Medical Oncology (2020-2022)
Şişli Kolan International Hospital, Park-time, Medical Oncology (2022-2023)
2010-YDUS (Subspecialty Examination) 14th place in Turkey
2014- Oncology Institute Days Best Poster Award
2015- Turkish Medical Oncology Society Board Exam Qualification
2015- ESMO (European Society for Medical Oncology) Board Exam Qualification
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