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Prof. Enis Özyar, MD Radiation Oncology · Acibadem Maslak Hospital, İstanbul

Prof. Enis Özyar, MD

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Radiation Oncology · Acibadem Maslak Hospital, İstanbul

Prof. Enis Özyar, MD

Prof. Enis Özyar, MD is a Radiation Oncology specialist at Acibadem Maslak Hospital in İstanbul. He plans and delivers radiotherapy for head and neck cancers, brain tumors, breast cancer and gastrointestinal cancers, and his expertise includes brachytherapy. Dr. Özyar has more than 47 years in medicine and speaks Turkish and English.

Medically verified profile 47+ years in medicineTurkish · EnglishVideo consultation available
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Prof. Enis Özyar, MDAccepting international patients
SpecialtyRadiation Oncology
ConsultationVideo · In person · Second opinion
Profile

About Prof. Enis Özyar, MD

Prof. Enis Özyar, MD is a radiation oncologist at Acibadem Maslak Hospital in İstanbul, where he works in the Radiation Oncology unit. He has been part of Acıbadem Healthcare Services since 2008 and has more than 47 years in medicine. His clinical work centers on radiotherapy for patients with cancer, including head and neck cancers, brain tumors, breast cancer and gastrointestinal cancers, as well as brachytherapy.

Dr. Özyar studied at Ankara University Faculty of Medicine from 1979 to 1985. Between 1985 and 1987 he worked at the İstanbul University İstanbul Faculty of Medicine Department of Anesthesiology and Reanimation and completed compulsory service with the Ministry of Labour and Social Security in Ankara. He completed his Radiation Oncology training at Hacettepe University Faculty of Medicine in 1993 and worked in the Hacettepe University Faculty of Medicine Radyasyon Onkolojisi Department from 1987 to 2008, becoming an Associate Professor in 1997 and a Professor in 2003. He is a member of the Radyasyon Onkolojisi Association, the Turkish Cancer Research and Fight Association, the Turkish Oncology Association, the Hacettepe Oncology Institute Association, the Oncology Institute Foundation, the Balkan Union of Oncology, the European Society of Therapeutic Radiology and Oncology and the American Society of Therapeutic Radiology and Oncology. His published work includes studies on nasopharyngeal carcinoma, among them tumor volume as a prognostic factor and treatment of pediatric and young adult patients, as well as papers on primary thyroid lymphoma and childhood Hodgkin lymphoma.

Clinical focus

Dr. Özyar evaluates and plans radiotherapy for a range of cancers. A significant part of his work involves head and neck cancers, an area reflected in his publications on nasopharyngeal carcinoma. He also treats patients with brain tumors, breast cancer and gastrointestinal cancers, and his expertise includes brachytherapy, in which a radiation source is placed close to or within the tumor.

Radiation treatment is planned individually. The choice of technique, dose and schedule depends on the type and stage of the cancer, the patient’s general condition and any previous surgery, chemotherapy or radiotherapy. Radiotherapy may be used alone or alongside other treatments, and Dr. Özyar’s role includes assessing whether radiation is appropriate and, if so, how it fits into the overall care plan.

How Dr. Özyar works with international patients

Dr. Özyar speaks Turkish and English, and interpreters can be arranged for patients who speak other languages. The Acibadem international patient team coordinates the collection of prior reports and imaging, such as MRI, CT, X-ray or ultrasound reports, laboratory and pathology results, operative notes and discharge summaries, and arranges appointments and the hospital visit. A first consultation typically covers the patient’s history and symptoms, a review of existing imaging and previous treatments, a clinical examination and a discussion of the options. Video consultation is available for international patients who wish to discuss their case before traveling, or when an in-person visit is not immediately possible.

Clinical focus

What Dr. Özyar treats and performs

Each item opens the condition or treatment page with the care pathway for international patients.

Areas of practiceGastrointestinal oncology

Background

Education, career and memberships

Education & training

Education

  • 2003Hacettepe University Faculty of Medicine / Professor
  • 1997Hacettepe University Faculty of Medicine / Associate Professor
  • 1993Hacettepe University Faculty of Medicine Radyasyon Onkolojisi
  • 1979–1985Ankara University Faculty of Medicine
Career

Professional Experience

  • 2008Acıbadem Healthcare Services
  • 1987–2008Hacettepe University Faculty of Medicine Radyasyon Onkolojisi Department
  • 1985–1987Ministry of Labour and Social Security, Compulsory Service, Ankara
  • 1985–1987İstanbul University İstanbul Faculty of Medicine Department of Anesthesiology and Reanimation
Memberships

Professional Memberships

  • Radyasyon Onkolojisi Association
  • Turkish Cancer Research and Fight Association
  • Turkish Oncology Association
  • Hacettepe Oncology Institute Association
  • Oncology Institute Foundation
  • Balkan Union of Oncology
  • European Society of Therapeutic Radiology and Oncology
  • American Society of Therapeutic Radiology and Oncology
Selected publications

Selected Publications

  • Treatment results and prognostic factors in primary thyroid lymphoma patients: a rare cancer network study. Onal C, Li YX, Miller RC, Poortmans P, Constantinou N, Weber DC, Atasoy BM, Igdem S, Ozsahin M, Ozyar E. Ann Oncol. 2011 Jan;22(1):156-64
  • Prognostic significance of tumor volume in nasopharyngeal carcinoma. Sarisahin M, Cila A, Ozyar E, Yildiz F, Turen S. Auris Nasus Larynx. 2011 Apr;38(2):250-4
  • T4N0M0 nasopharyngeal carcinoma patients: do they have a distinct tumor biology? Atasoy BM, Ozyar E, Akman F, Esassolak M, Abacioğlu U. Kulak Burun Bogaz Ihtis Derg. 2010 Mar-Apr;20(2):89-96
  • Isolated hypoglossal nerve paralysis: a case report. Beriat GK, Ezerarslan H, Kocatürk S, Özyar E. Kulak Burun Bogaz Ihtis Derg. 2010 Jul-Aug;20(4):205-9
  • Symmetrical primary cutaneous marginal zone lymphoma associated with rheumatoid arthritis. J Cutan Pathol. 2010 May;37(5):600-4 Yildirim FE, Karaduman A, Hürmüz P, Ozyar E, Barishta I, Saglam A.
  • Pediatric and young adult nasopharyngeal carcinoma patients treated with preradiation Cisplatin and docetaxel chemotherapy. Int J Radiat Oncol Biol Phys. 2009 Mar 15;73(4):1116-20 Varan A, Ozyar E, Corapcioglu F, Kosal Y, Aydin B, Yazici N, Akyuz C, Buyukpamukcu M.
  • The treatment of childhood Hodgkin lymphoma: improved survival in a developing country. Büyükpamukçu M, Varan A, Akyüz C, Atahan L, Ozyar E, Kale G, Köksal Y, Kutluk T. Acta Oncol. 2009;48(1):44-51
  • Pediatric and young adult nasopharyngeal carcinoma patients treated with preradiation Cisplatin and docetaxel chemotherap Int J Radiat Oncol Biol Phys. 2009 Mar 15;73(4):1116-20 Varan A, Ozyar E, Corapcioglu F, Kosal Y, Aydin B, Yazici N, Akyuz C, Buyukpamukcu M.
  • Bimodal age distribution in Hodgkin’s disease and nasopharyngeal carcinoma Barista I, Varan A, Ozyar E. Med Hypotheses. 2007;68(6):1421. Epub 2006 Dec 29
Good to Know

Frequently Asked Questions

Which cancers does Dr. Özyar treat with radiotherapy?
Dr. Özyar's areas of expertise include head and neck cancers, brain tumors, breast cancer and gastrointestinal oncology. He also performs brachytherapy. Whether radiotherapy is suitable, and which technique is used, depends on the individual diagnosis, stage and previous treatments, and is decided after a review of the patient's records and a clinical assessment.
Where does Dr. Özyar see patients?
Dr. Özyar works in the Radiation Oncology unit at Acibadem Maslak Hospital in İstanbul, Turkey. He has been part of Acıbadem Healthcare Services since 2008. The international patient team arranges appointments and organizes the hospital visit for patients traveling from abroad.
What languages does Dr. Özyar speak?
Dr. Özyar speaks Turkish and English. For international patients who speak other languages, interpreters can be arranged so that the consultation, treatment planning discussions and follow-up communication can take place in a language the patient understands.
What should I send for a case review by Dr. Özyar?
It is helpful to provide existing imaging and reports, such as MRI, CT, X-ray or ultrasound reports, pathology and laboratory results, operative notes, discharge summaries and details of any previous chemotherapy or radiotherapy. The international patient team coordinates the collection of these documents before the consultation.
What is Dr. Özyar's training and academic background?
Dr. Özyar graduated from Ankara University Faculty of Medicine in 1985 and completed Radiation Oncology training at Hacettepe University Faculty of Medicine in 1993. He became an Associate Professor in 1997 and a Professor in 2003, working in the Hacettepe University Faculty of Medicine Radyasyon Onkolojisi Department from 1987 to 2008.
Can I have a video consultation with Dr. Özyar before traveling?
Yes, video consultation is available for international patients. It can be used to discuss the diagnosis, review existing reports and consider possible options before a visit. A final treatment plan for radiotherapy generally requires an in-person evaluation, including a clinical examination and treatment planning at the hospital.
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