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Neolife Oncology Center


Istanbul, Turkey

Dr. Orhan Çelen

Dr. Orhan Çelen

General Surgery and Surgical Oncology Specialist
at Neolife Oncology Center
Speciality General Surgery, Oncology
Graduated 1990 (30 years since graduation)
Education 2012 Specialization Surgical Oncology, Ankara Oncology Teaching and Research Hospital
2008 University Associate Professor, Ankara Oncology Teaching and Research Hospital
1997 Specialist Doctor, Ankara Oncology Teaching and Research Hospital
1990 Ankara University Medical school
1984 TED Private Ankara College
Professional Experience 2016 – Present Neolife Oncology center
2015 – 2016 Bahçeşehir University School of Medicine, General Surgeon, Teaching Position
2011 – 2015 Private Medical Park Gebze hospital, general surgeon
2009 – 2011 Private İstanbul surgical hospital, general surgery
1997 – 2009 General Surgeon, Ankara Oncology Teaching and Research Hospital
1998 – 2000 Şırnak Military Hospital
1993 – 1995 Boston University School of Medicine, The University Hospital, Section of Surgical Oncology
1991 – 1997 Ankara Oncology Teaching and Research Hospital
Certifications 2004 Ankara Breast Diseases Association, Current Breast Cancer Diagnosis and Treatment Course, Subject: Sentinel nod biopsy, Ankara

2005 Ankara Breast Diseases Association, Benign Breast Diseases Course, Clinical approach to nipple discharge, Ankara

2007 Ankara Breast Diseases Association, Complications and Considerations in the Treatment of Breast Cancer, Nerve injuries in axillary dissection, Ankara
Memberships - National Surgical Association
- Ankara Surgical Association,
- Ankara Breast Diseases Association
- Breast Diseases Federation
- European Society of Surgical Oncology
Awards - XIV. National Cancer Congress, Jury Free Paper Award
Orhan Celen, Emin Yildirim, Captain Gulben, Ugur Berberoglu. Value of
prognostic scoring systems in patients with differentiated thyroid carcinoma.
XIV. National Cancer Congress, Istanbul, April 30-May 4, 2001.

- Third Prize of the National Surgery Congress Oral Presentation Competition
2006, Orhan Celen, Emin Yildirim, Ugur Berberoglu. Prognostic significance of lymph node involvement in gastric cancer. National Surgery Congress, 24-28 May, Antalya, 2006.

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