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Sefik Igdem
30
years of experience

Sefik Igdem

  • Specialization: Radiation oncologist
  • 30 years of experience
  • Speaks:
    English, Turkish
  • Online consultations: available
  • Workplace: Turkey, Istanbul, Gayrettepe Florence Nightingale Hospital
  • Professor Doctor Sefik Igdem specializes in Radiation Oncology at Gayrettepe Florence Nightingale Hospital, focusing on advanced treatments for pancreatic cancer.

    • Experienced in using Truebeam Stx Technology and Halcyons for precise radiation therapy
    • Holds academic positions at T.R. Demiroğlu Bilim University
    • Specializes in head and neck cancers alongside pancreatic cancer
    • Trained at Istanbul University Cerrahpaşa Faculty of Medicine

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IMRT Radiotherapy — 30-Session All-Inclusive Treatment Package

$11,000
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5.0
Excellent score
2 patient verified reviews
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Patient reviews

About clinic Gayrettepe Florence Nightingale Hospital
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Melvin • Hand surgery
United States of America
Jan 22, 2026
Verified review.
the full experience was so very nice to navigate
Considering that we were traveling into Istanbul late on Saturday night, my support member was still texting with me and the doctor on a Sunday so that I was able to see the doctor Monday morning and then booked into surgery the following day. That would not happen other places, and the full experience was so very nice to navigate!!
With the help of Bookimed getting me in touch with the best doctor for my needs, I cannot be happier with the result of my surgery. The whole process was so easy and everyone involved was so very kind and helpful.
Only that I needed the procedure in the 1st place.
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I would not hesitate to contact again for any future needs and will tell anyone I know to not worry about using this great service.
Amuza Lidia Cristina • PET-MRI
Romania
Oct 27, 2025
Verified review.

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Qualifications

Prof. Dr. Sefik Igdem is a radiation oncologist at Gayrettepe Florence Nightingale Hospital in Istanbul. He treats head and neck cancers using TrueBeam STx and Halcyon technologies. Dr. Igdem is a Professor who uses high-precision conformal radiotherapy protocols. This method shapes radiation beams to match the tumor size and position.

Specialization and Clinical Focus

Dr. Igdem treats various oncological conditions with a primary focus on head and neck malignancies. He also treats prostate cancer with targeted methods to minimize side effects on healthy tissue. The specialist uses conformal radiotherapy to match radiation beams to the exact shape of the tumor.

His clinical practice includes the treatment of diverse illnesses:

  • Gastrointestinal cancers including esophageal, stomach, pancreatic, and rectal tumors
  • Neurological tumors such as glioblastoma, meningioma, and medulloblastoma
  • Gynecological and urological cancers including cervical, ovarian, and bladder cancer
  • Soft tissue and bone conditions like sarcoma, chordoma, and osteosarcoma
  • Lung cancer and metastatic diseases in the liver or other organs

Advanced Technologies Used

Dr. Igdem uses the TrueBeam STx Technology for high-dose radiation delivery with sub-millimeter accuracy. This system allows for shorter treatment sessions while protecting critical organs. He also employs Halcyon systems. These systems streamline the radiotherapy process and improve patient comfort during sessions.

Work Experience

  • Radiation Oncologist – Gayrettepe Florence Nightingale Hospital, Istanbul
  • Professor – T.R. Demiroğlu Bilim University
  • Associate Professor – T.R. Demiroğlu Bilim University
  • Medical Specialist – GATA Military Medical Faculty

Education and Training

  • 1991 – Istanbul University Istanbul Faculty of Medicine – Medical Degree
  • 1996 – Istanbul University Cerrahpaşa Faculty of Medicine – Radiation Oncology Specialization

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