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Dr. Sefik Igdem

Dr. Sefik Igdem

Radiation Oncologist

, Istanbul, Turkey

37 Years of experience

Speaks: English, Turkish

Dr. Sefik Igdem is currently not consulting online with MediGence
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About Dr. Sefik Igdem

Qualification and Experience

Dr. Şefik İğdem is a highly respected radiation oncologist known for his significant academic and professional contributions. He embarked on his medical journey at Istanbul University, completing his medical studies in 1991. Dr. İğdem further specialized in radiation oncology at Istanbul University's Cerrahpaşa Faculty of Medicine, beginning in 1996. There, he immersed himself in advanced treatment methodologies, shaping his expertise in the field.

In 2011, Dr. İğdem joined T.R. Demiroğlu Science University, where his exceptional leadership and accomplishments led to his appointment as an Associate Professor. His dedication and scholarly achievements culminated in his promotion to the rank of Professor in 2016. This milestone underscored his stature as a distinguished practitioner and educator in radiation oncology, enhancing his reputation both nationally and internationally.

Being an outstanding contributor to the field of oncology, Dr. Şefik İğdem’s devotion to patient care, research, and academic excellence highlights his dedication to his profession.

Area of Interest

  • Prostate Cancer
  • Head and Neck cancer
  • Conformal treatments
  • Radiation Oncology

Qualification

  • 2016- T.R. Demiroğlu Science University
    Professor
  • 2011- T.R. Demiroğlu Science University
    Associate Professor
  • 1996- İ.Ü. Cerrahpaşa Faculty of Medicine
    Radiation Oncology Specialization Training
  • 1991- Istanbul University
    Medical Education
  • Global Team of Board Certified Surgeons and Medical Specialists
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MEMBERSHIPS (3)

  • ASTRO
  • ESTRO
  • Turkish Radiation Oncology Association

RESEARCH PAPERS AND PUBLICATIONS (14)

  • (SCI & SSCI & Arts and Humanities) DC Weber, RC Miller, S. Villa, P.Hanssens, BG Baumert, P.Cadtadot, P.Varlet, U.Abacıoğlu, S.İğdem, E.Szutowicz, H.Nishioka, S.Hofer, HP Rutz, M.Özşahin, A.Taghian, RO Mirimanof. Outcome and prognostic factors in cerebellar glioblastoma multiforme in adults: a retrospective study from Rare Cancer Network. Int J Radiat Oncol Biol Phys 2006; 66:179-186
  • Demiral AN, Alicikuş ZA, Uğur VI, Karadoğan İ, Yöney A, Andrieu MN, Yalman D, Pak Y, Aksu G, Özyiğit G, Özkan L, Kılçıksız S, Koca S, Çaloğlu M, Yavuz AA, Çağlar HB, Beyzadeoğlu M , İğdem Ş, Serin M, Kaplan B, Koç M, Korkmaz E, Karakoyun-Çelik Ö, Dinçer S, Kınay M.Patterns of care for lung cancer in radiation oncology clinics of Turkey. Int J Radiat Oncol Biol Phys 2008;72:1530-15
  • İğdem Ş, Okkan S, Ünalan B, İğdem AA, Ferhanoğlu B. Cervical cancer coexisting with small lymphocytic lymphoma detected during positron emission tomography/computed tomography simulation: A case report. Eur J Gynaec Oncol 2008; 4:405-407
  • İğdem Ş, Ercan T, Alço G, Zengin F, Özgüleş R, Geceer G, Okkan S, Öber A, Turkan S. Dosimetric comparison of intensity-modulated pelvic radiotherapy with 3D conformal radiotherapy in patients with gynecologic malignancies. Eur J Gynaec Oncol 2009; 5:547-551
  • İğdem Ş, Akpınar H, Alço G, Ağaçayak F, Turkan S, Okkan S. Implantation of fiducial markers for image guidance in prostate radiotherapy: patient-reported toxicity. Br J Radiol 2009;82:941-945
  • İğdem Ş, Alço G, Ercan T, Barlan M, Ganiyusufoğlu K, Ünalan B, Turkan S, Okkan S. Insufficiency fractures after pelvic radiotherapy in patients with prostate cancer. Int J Radiat Oncol Biol Phys 2010;77:818-823
  • İğdem Ş, Abacıoğlu U, Çetin İ, Alço G, Akgün Z, Şengöz M, Bekiroğlu N, Turkan S, Okkan S. Impact of Percent Positive Random Biopsies on Biochemical Outcome in Prostate Cancer Patients Treated with External Beam Radiotherapy With or Without Androgen Deprivation. J.BUON 2009;14:629-634
  • Alço G, İğdem Ş, Dinçer M, Tecimer C, Şentürk R, Vural M, Okkan S. Gemcitabine induced radiation recall myositis: Report of two cases and review of the literature. UHOD 2009;19:249-253
  • Alço. G, İğdem Ş, Ercan T, Dinçer M, Şentürk R, Atilla S, Zengin F, Okkan S. Coverage of axillary lymph nodes with high tangential fields in breast radiotherapy. The British Journal of Radiology 2010; 83:1072-1076
  • Feldman-Stewart D, Capirci C, Brennenstuhl S, Tong C, Abacıoğlu U, Gawkowska-Suwinska M, van Gils F, Heyda A, İğdem S, Macias V, Grillo IM, Pijls-Johannesma M, Parker C, Pimentel N, Wördehoff H. Information needs of early-stage prostate cancer patients: A comparison of nine countries. Radiotherapy and Oncology. 2010; 94:328-333
  • İğdem Ş, Alço G, Ercan T, Ünalan B, Kara B, Geceer G, Akman C, Zengin FO, Atilla S, Okkan S. The application of positron emission tomography/computed tomography in radiation treatment planning: Effect on gross target volume definition and treatment management. Clinical Oncology 2010;22:173-178
  • İğdem Ş, Spiegel DY, Efstathiou J, Miller RC, Poortmans PMP, Koca S, Kılıç-Ünsal D, Okkan S, Zietman A. Prostatic Duct adenocarcinoma: Clinical characteristics, Treatment options, and Outcomes- a Rare Cancer Network study. Onkologie. 2010;33:169-173
  • Ercan T, İğdem Ş, Alço G, Zengin F, Atilla S, Dinçer M, Okkan S. Dosimetric comparison of field-in-field intensity-modulated radiotherapy technique with conformal radiotherapy techniques in breast cancer. Jpn J Radiol 2010;28:283-289
  • Önal C, Li Ann Oncol. 2011;22(1):156-64

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PROCEDURES

  • Adrenal Cancer Treatment
  • Cholangiocarcinoma (Bile Duct Cancer)
  • Nasopharyngeal Cancer Treatment
  • Papillary Thyroid Cancer Treatment
  • Penile Cancer Treatment
  • Radiation Therapy
  • Small Intestine Cancer Treatment
  • Vaginal Cancer Treatment
  • Vulvar Cancer Treatment

FREQUENTLY ASKED QUESTIONS

What area of specialization does Dr. Sefik Igdem have?
Dr. Sefik Igdem is specialized in Turkey and of the most sought after doctors in Cancer Specialist.
Does Dr. Sefik Igdem offer Telemedicine Consultation through Medigence?
No, this doctor dose not offer telemedicine via MediGence
How many years of experience does Dr. Sefik Igdem have?
Dr. Sefik Igdem is one of the most sought after specialists in Turkey and has over 37 years of experience.

Reviewer

Dr. Vijita Jayan
Dr. Vijita Jayan

BPT, MPT (Neuro)

18 Years of Experience

With over 18 years of distinguished clinical experience, Dr. Vijita Jayan is a highly accomplished Clinical Director and Rehabilitation Specialist, renowned for her expertise in neuro-rehabilitation, functional recovery, and mobility-dependent case management. Her extensive practical knowledge enables her to design and implement individualized, evidence-based rehabilitation protocols that consistently yield measurable patient outcomes. A prolific researcher and academic writer, she has authored numerous peer-reviewed articles and research papers, significantly advancing the field of rehabilitative medicine. The recipient of multiple prestigious accolades, Dr. Jayan is widely regarded as one of the foremost authorities in Physical Medicine and Rehabilitation, continually shaping neuro-rehabilitative care through research, innovation, and clinical excellence. View More

Last Reviewed - January 2026

Author

Amit Bansal
Amit Bansal

CEO

18 Years of Experience

Amit Bansal is a serial entrepreneur, Co-Founder, and CEO of MediGence. He has more than 17 years of strong technology experience. Having worked for some of the recognized companies in India, Australia and traveled worldwide to help businesses to grow multi-folded under his leadership and strategic guidance.. View More