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. Dr. Sezer Sağlam is a medical oncologist at Gayrettepe Florence Nightingale Hospital. He specializes in gastrointestinal and breast cancers. He has contributed to cancer care through research, especially with his study on the best timing for surgery after neoadjuvant therapy in rectal cancer. This work has influenced global treatment protocols.
Dr. Sağlam has led clinical trials in targeted therapies and precision medicine. His research on liver-transplanted patients with hepatocellular carcinoma was nominated for the 2024 International Best Researcher Award. He is a member of ASCO, ESMO, and ENET. Dr. Sağlam provides personalized and evidence-based oncology care.
Personal Information
Sex: Male
Born : 1968
Professional Experience
Gayrettepe Florence Nigthingale Hospital
Medical Oncology Department
Besiktas/Istanbul/Turkey (ongoing)
Education:
He became Professor (22/April /2016)
Medical Oncology
Attending Phys.in Gastrointestinal Oncology (January 2005 ,2009)
Istanbul University Oncology Institue,
Department of Medical Oncology
Medical Oncology Fellowship (December 2001-December2004)
Istanbul University, Istanbul Medical Faculty
Hemodialysis Traning (May1996-January1997)
Istanbul University ,bCerrahpasa Medical Faculty
Internal Medicine Residency (November 1991-November 1996)
Istanbul University ,bCerrahpasa Medical Faculty
Ege University Medical Faculty (1985-1991)
Professional Experience
February 1999-November 2001
Metropolitan Florence Nigthingale Hospital
American Cancer Center, Gayrettepe/İstanbul
April1997- October 1998
Bayraktar Dialysis Center
Güngören/ Istanbul
Membership
Turkish Medical Oncology Association
ENET(European Neuroendocrine Tumour Society)
ESMO
ASCO
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
Education:
Teaching course on “Lymphatic mapping and sentinel node”
June 1998, MDA Cancer Center, Houston, Texas, USA
General Surgery
Feb. 1993 – Dec. 1996, Şişli Etfal Hospital, Istanbul, Turkey
General Surgery
May 1990 – Jan. 1993, Lille University Hospital, Lille, France
M.D.
1983 – 1990, Cerrahpasa School of Medicine, Istanbul, Turkey
Experience
Attending General Surgeon, Jan. 1998 – present
F.N. Metropolitan Hospital, Istanbul, Turkey
American Cancer Center, Breast Surgery
Attending General Surgeon, 1996 – present
Medmar Diagnostic Center, Istanbul, Turkey
Diagnosis and monitoring with sophisticated techniques
General Surgeon, 1996 – 1998
Guzelbahce Medical Center and Yeditepe Hospital, Istanbul, Turkey
Specializing in breast and thyroid surgery
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.