Dr Zeynep — Istanbul
- Specialisation: General surgeon
- 26 years of experience
- Speaks:English, Turkish
- Workplace: Turkey, Istanbul, Neolife Medical Center
- Co-authored a World Journal of Surgery study on lymph node ratio in breast carcinoma involving 2,151 patients.
Dr. Zeynep Civelek is a general surgeon. She treats benign perianal diseases, including hemorrhoids (with laser), anal fissure, fistula, condyloma, and pilonidal disease, and performs rubber band ligation. She also manages breast disease and cancer, skin cancers, laparoscopic cholecystectomy, and hernias. She worked full-time at Bayindir Levent Medical Center from 2010 to 2025. Earlier, she served at Şişli and Gayrettepe Florence Nightingale Hospitals. She completed her general surgery training at SSK Okmeydanı from 2000 to 2006. She earned her MD from Marmara University, ranking 12th in her class. She also trained in GI surgery for inflammatory bowel disease at the University of Florence in August 2000.
Her research focuses on prognostic factors in breast and colorectal cancer. She wrote a melanoma thesis in 2006 and co-authored papers in Cancer (2005), Breast (2006, 2014), Annals of Surgical Oncology (2008), The Breast Journal (2011), ISRN Oncology (2011), Japanese Journal of Clinical Oncology (2012), World Journal of Surgery (2013; 2,151 patients), International Journal of Surgery (2014), and Journal of Gastrointestinal Cancer (2017).
Patient reviews
Doctor's services
How are we doing?
Qualifications
Areas of Interest
- Benign perianal diseases
- Hemorrhoids
- Hemorrhoid laser surgery
- Anal fissure
- Anal fistula
- Anal condyloma
- Pilonidal sinus surgery
- Anoscopic rubber band ligation
- Breast disease monitoring and treatment
- Breast cancer
- Skin cancers
- Surgical treatment of benign skin and subcutaneous lesions.
- Surgical treatment of malignant lesions of the skin and subcutaneous tissue.
- Laparoscopic cholecystectomy
- Hernias
Education
1995 – 1999
Marmara University Faculty of Medicine (Graduation Rank: 12)
1993 – 1995
Uludağ University Faculty of Medicine
1989 – 1993
Private Italian High School
1985 – 1989
Italian Girls' Secondary School
Work Experience
2010 – 2025
Bayindir Levent Medical Center (Full-time)
2014 – 2019
Beşiktaş Municipal Council Member – Deputy Group Leader
2011 – 2018
Şişli Florence Nightingale Hospital (Hematopoietic)
Stem Cell Transplantation Unit
2010 – 2019
Gayrettepe Florence Nightingale Hospital
(Part-time)
2007 – 2010
S.B. Başakşehir State Hospital
2000 – 2006
SSK Okmeydanı Training Hospital, 5th General Surgery Clinic (Specialization)
Vocational Trainings
- 08/2000 Gastrointestinal Surgery (Surgery for Inflammatory Bowel Diseases) - University of Florence Faculty of Medicine, Department of Clinical Pathophysiology, Division of Surgery, ITALY
Scientific Studies
1) High-dose interferon treatment in cutaneous malignant melanoma. 2006 - Specialization thesis.
2) Prognostic value of the 2002 TNM classification for breast carcinoma with regard to the number of metastatic axillary lymph nodes.
Duraker N, Caynak ZC .
cancer 2005 Aug 15;104(4):700-7.
3) Perineural invasion has no prognostic value in patients with invasive breast carcinoma.
Duraker N, Caynak ZC , Türköz K.
Breast. 2006 Oct;15(5):629-34.
4) Is there any prognostically different subgroup among patients with stage IIIC (any TN3M0) breast carcinoma?
Duraker N, Caynak ZC , Bati B.
Ann Surg Oncol. 2008 Feb;15(2):430-7. Epub 2007 Oct 3. Erratum in: Ann Surg Oncol. 2008 May;15(5):1551 .
5) The prognosis of tumors with only microscopic skin involvement without clinical T4b signs is significantly better than T4b tumors in breast carcinoma.
Duraker N, Batı B, Caynak ZC , Demir D, Kurtuluş I.
Breast J. 2011 Jan-Feb;17(1):47-55.
6) Prognostic Significance of the Number of Removed and Metastatic Lymph Nodes and Lymph Node Ratio in Breast Carcinoma Patients with 1-3 Axillary Lymph Node(s) Metastasis.
Duraker N, Batı B, Demir D, Caynak ZC .
ISRN Oncol. 2011;2011:645450.
7) Survival benefit of post-mastectomy radiotherapy in breast carcinoma patients with T1-2 tumor and 1-3 axillary lymph node(s) metastasis.
Duraker N, Demir D, Bati B, Yilmaz BD, Bati Y, Çaynak ZC , Sobutay E.
Jpn J Clin Oncol. 2012 Jul;42(7):601-8.
8) Lymph Node Ratio May Be Supplementary to TNM Nodal Classification in Node-positive Breast Carcinoma Based on the Results of 2151 Patients
Duraker N, Batı B, Caynak ZC , Demir D
World Journal of Surgery, 2013 Jun;37(6):1241-8
9) Axillary Lymph Node Status and Prognosis in Multifocal and Multicentric Breast Carcinoma
Duraker N, Caynak ZC .
The Breast Journal, 2014 Jan-Feb;20(1):61-8
10) The impact of primary tumor resection on overall survival in patients with colorectal carcinoma and unresectable distant metastases: a prospective cohort study
Duraker N, Civelek Çaynak Z, Hot Z
Int J Surg. 2014;12(7):737-41
11) The prognostic value of the number of lymph nodes removed in patients with node-negative colorectal cancer
Duraker N, Civelek Çaynak Z , Hot Z
Int J Surg. 2014 Nov1;12(12):1324-1327
12) Axillary lymph node status and prognosis in multifocal and multicentric breast carcinoma.
Duraker N, Caynak ZC.
Breast J. 2014 Jan-Feb;20(1):61-8.
Duraker N, Çaynak ZC , Trabulus DC.
J Gastrointest Cancer. 2017 Mar;48(1):8-12.
14) Comparison of Clinicopathological Features and Prognosis of T4b and T4d Breast Carcinomas.
Nüvit Duraker, Bakır Batı, Dr. Zeynep C Çaynak .
National Breast Diseases Congress 2007 - Oral presentation.
15) Free/total Prostate Specific Antigen Ratio in Men with Colorectal Carcinoma Nüvit Duraker, Zeynep Civelek Çaynak Didem Can Mualla Parıltı
National Congress of Colon and Rectum Surgery 2009 - Oral presentation
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