Funda Tekkeshin

years of experience

Specialisation: Pediatric hematologist/oncologist
17 years of experience
Speaks:
English, Turkish
Online consultations: available
Workplace: Turkey, Istanbul, Istanbul Florence Nightingale Hospital
Author of multiple international pediatric hematology-oncology publications; member of the Turkish Society of Hematology and active in multicenter research.
Dr. Funda Tekkeşin is a pediatric hematology and oncology specialist at Istanbul Florence Nightingale Hospital (2025–present). She previously worked at Acıbadem Ataşehir (2024–2025) and at Ümraniye Training and Research Hospital (2016–2024). At Ümraniye, she served in the Pediatric Stem Cell Transplantation Unit (2020–2024). She received her MD from Hacettepe University (1995–2002). She completed a pediatric hematology–oncology fellowship at Gazi University (2010–2015).

Her expertise includes pediatric hematology and oncology, stem cell and bone marrow transplantation, childhood leukemia and lymphoma, benign and immune-related hematologic disorders, and supportive oncology care. She has published in the Journal of Pediatric Hematology/Oncology and in Pediatric Hematology and Oncology. She is a member of the Turkish Society of Hematology. She contributes to national and multicenter collaborations.

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1-5 of 20 reviews

Мария • Endometriosis

16 Oct 2024

Verified review.

Prof

Hi, I'm Cella, and I’m living in Bali, Indonesia. I’d like to share an honest review based on my experience of finding a medical coordinator, a doctor, and a hospital for my case. I was recently diagnosed with an ovarian cyst and stage 4 endometriosis, which required surgery as soon as possible. I was initially hospitalized in Bali, but the doctor there suggested I look for a better-equipped hospital as they didn’t have the necessary facilities to perform my surgery. It wasn’t easy to find the right care on a small island like Bali. Thankfully, my best friend helped me connect with a medical manager from Bookimed. That’s how we found Alisher, the medical manager and Prof. Dr. A Cem Iyibozkurt from Florence Nightingale Hospital in Istanbul. We arranged an online consultation with the doctor, which was free of charge, I already have all my medical records and MRI results before an online consultation, I’ve prepared everything to speed up the process. and within a week, they scheduled my laparoscopic robotic surgery. Alisher did an excellent job coordinating everything, and I couldn’t be happier with him. Prof. Dr. Cem Iyibozkurt is an amazing doctor, highly experienced, and well-known for his expertise in the field. The hospital itself was fantastic—the nurses and staff took great care of me. I’m really grateful for the smooth process, and I highly recommend them to anyone who may be in a similar situation and looking for this kind of care and has similar situation as mine.

Iryna Gumenchuk • Brain tumor removal

United States of America

16 July 2025

Verified review.

We felt fully confident knowing we were in the hands of one of the best in his field

World-Class Neurosurgical Care and Compassion We are profoundly grateful for the exceptional care provided by Professor Ilhan Elmaci. His expertise, professionalism, and compassionate approach were evident from our very first meeting. Professor Elmaci performed the surgery to remove a medulloblastoma with extraordinary precision and care, and we felt fully confident knowing we were in the hands of one of the best in his field. Beyond his remarkable surgical skill, Professor Elmaci took the time to explain each step of the process with clarity and patience. He was always available to answer questions and offer reassurance, treating both the patient and our family with deep empathy and respect. A heartfelt thank you to Coordinator Alisher, who supported us at every step. He was always responsive, attentive, and truly dedicated to the patient’s well-being. From organizing the transfer and handling all special requirements to keeping the family updated and arranging medical needs, he made a difficult time much more manageable. The hospital staff was professional, kind, and caring throughout. We deeply appreciate the high level of expertise and personal attention that made all the difference in this journey.

About Bookimed service

⸻ Excellent Support and Coordination by Bookimed We are very thankful to Bookimed for their outstanding support in organizing the entire process of surgery and treatment. From the very beginning, their team was professional, responsive, and truly dedicated to helping us find the best medical care possible. They guided us through every step — from selecting the right hospital and specialist to arranging the logistics of travel, appointments, and treatment. Thanks to Bookimed, we were connected with Professor Ilhan Elmaci, an exceptional neurosurgeon, and received world-class care. A special thanks to Coordinator Alisher, who was with us every step of the way. He handled all the details, ensured smooth communication between the hospital and our family, and made sure the patient’s needs were fully met. His commitment, compassion, and constant availability gave us comfort and confidence throughout this challenging time. We highly recommend Bookimed to anyone seeking reliable, efficient, and compassionate medical coordination. They truly made a difference in our experience.

Zvonimir • Immunotherapy

Croatia

15 May 2025

Verified review.

Her level of empathy was touching

My request was for a specific treatment for my condition, which I believe was triggered by COVID or vaccine-related complications. The treatment itself is relatively new and not widely available; however, the doctor Faturanız Hazırdır was open to considering my request, which was a decisive factor in choosing this hospital. Her level of empathy was touching. When I arrived, I received outstanding support from Aliser Durdiyev, who coordinated the entire process — from reception and medication procurement to scheduling the treatment. None of this would have been possible without Hanna Karvatska, who connected all of us who has deep personal and professional connection with people here, and I’m deeply grateful to her, Alisar, and the doctor for their support and professionalism. And special thanks for the empathy from all three people, the teamwork they created to get me what we all believe could be the best treatment.

About Bookimed service

Hanna is a remarkable individual with a big heart, dedicated to connecting patients with top-tier doctors and medical professionals across various countries. Her extensive network ensures that every partner and connection goes the extra mile to meet patient needs without hesitation. Aliser is a young but already experienced medical advisor. I was positevley surprised with approach. One of the most critical aspects of arranging medical treatment abroad is navigating logistics in an unfamiliar country. This is where Aliser's proactive approach truly stands out. His exceptional energy, personal connections, and unwavering curiosity to find the best solutions were decisive factors in my positive experience. Together, Hanna and Alisar helped to oerganise care and coordination, making the complex process of international medical treatment seamless and patient-focused.

Anonymous • Hydrocephalus

Turkmenistan

14 Apr 2025

Verified review.

I recommend from the bottom of my heart

We were diagnosed with internal and external hydrocephalus in a newborn. While searching for clinics, I accidentally came across the Bookimed platform. They immediately responded to my request and assigned a personal medical coordinator of the platform Olga Romaniuk. Very responsible, always in touch, she competently selected us a clinic florence ningtingale hospital and signed us up for an online consultation with Professor Ilhan Elmachi. After that we were assigned a manager of this clinic for online consultation Alisher, (by the way, he speaks several languages, including Turkmen, which was a big plus for us). Alisher is also very responsible, always in touch, selects convenient for us time for consultation, helped us to hold an online meeting without delays and interruptions. I am very satisfied with the work of Elmachi docor. All questions were answered. Special thanks to Elmachi's translator 🫶🏻. I recommend from the bottom of my heart

About Bookimed service

I found Bookimed by chance when I was searching for top clinics in Turkey on google. we were assigned a personalised medical coordinator, bookimed Olga. Thank her very much for signing us up to Ilhan Elmaci (also one of the best neurosurgeons in Turkey). Polite, helpful, punctual ❤️. The Bukimed platform itself is very informative, lots of clinics and reviews 👍

Anonymous • Lobectomy

United Kingdom

22 Feb 2025

Verified review.

Professor Alper Toker is an outstanding doctor, professional, very knowledgeable

The team was great. Professor Alper Toker is an outstanding doctor, a true professional, and extremely knowledgeable. His team is perfectly organized, ensuring that everything runs smoothly. The nurses were incredibly attentive and compassionate, providing excellent care and support throughout the entire process. They were always available to assist with any needs, making sure that we were comfortable and well-informed at all times. From the initial consultation to the final stages of care, the entire experience was handled with **expertise and professionalism**. We are truly grateful for the dedication and hard work of Professor Alper Toker and his exceptional team.

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Qualifications

Professional Experience

2025 – Present

Pediatric Hematology and Oncology Specialist

Istanbul Florence Nightingale Hospital, Istanbul, Türkiye

2024 – 2025

Pediatric Hematology and Oncology Specialist

Acıbadem Ataşehir Hospital, Istanbul, Türkiye

2020 – 2024

Physician, Pediatric Stem Cell Transplantation Unit

Ümraniye Training and Research Hospital, Istanbul, Türkiye

2016 – 2024

Pediatric Hematology and Oncology Specialist

Ümraniye Training and Research Hospital, Istanbul, Türkiye

2015 – 2016

Pediatric Specialist

Konya Training and Research Hospital, Konya, Türkiye

2009

Physician, Pediatric Intensive Care Unit

Dr. Sami Ulus Children's Hospital, Ankara, Türkiye

Education

2010 – 2015

Fellowship in Pediatric Hematology and Oncology

Gazi University Faculty of Medicine, Ankara, Türkiye

2004 – 2009

Residency in Pediatrics

Hacettepe University Faculty of Medicine, İhsan Doğramacı Children's Hospital, Ankara, Türkiye

1995 – 2002

Doctor of Medicine (MD)

Hacettepe University Faculty of Medicine, Ankara, Türkiye

Areas of Expertise

 Pediatric Hematology

 Pediatric Oncology

 Pediatric Bone Marrow and Stem Cell Transplantation

 Childhood Leukemia

 Childhood Lymphoma

 Benign Pediatric Hematologic Disorders

 Pediatric Immunology-Related Hematologic Diseases

 Supportive Care in Pediatric Oncology

Selected International Publications

 Küpeli S, Tekkeşin F, et al. Wilms' Tumor Associated with Vertebral Anomalies. Journal of Pediatric

Hematology/Oncology. 2008.

 Tekkeşin F, et al. High-Risk ALK-Negative Anaplastic Large-Cell Lymphoma Presenting with Hypereosinophilic

Syndrome in a 2.5-Year-Old Child. Pediatric Hematology and Oncology. 2012.

 Derinkuyu BE, Tekkeşin F, et al. Imaging Features of Burkitt Lymphoma in the Pediatric Age Group.

Diagnostic and Interventional Radiology. 2016.

 Tekkeşin F, et al. Multisystem Langerhans Cell Histiocytosis with Thymic Involvement in a 2-Month-Old

Infant. Turkish Journal of Pediatrics. 2016.

 Kayilioğlu H, Tekkeşin F, et al. Association of CYP3A5 Expression and Vincristine Neurotoxicity in Pediatric

Malignancies. Journal of Pediatric Hematology/Oncology. 2017.

 Tekkeşin F, et al. Successful Treatment of Disseminated Fungal Infections in Pediatric Acute Lymphoblastic

Leukemia Patients. Blood Research & Transfusion Journal. 2018.

 Tekkeşin F, et al. Blastic Plasmacytoid Dendritic Cell Neoplasm in a Pediatric Patient Treated with Stem Cell

Transplantation. Journal of Pediatric Hematology/Oncology. 2021.

 Koç BS, Tekkeşin F, et al. Granulocyte Transfusion in Life-Threatening Infections in Pediatric Oncology

Patients. Transfusion and Apheresis Science. 2021.

 Yıldırım ÜM, Tekkeşin F, et al. Predictive Factors for Response to Intravenous Immunoglobulin Therapy in

Childhood Immune Thrombocytopenia. 2022.

 Tekkeşin F, et al. Acute Complications During Intensive Chemotherapy in Pediatric Acute Lymphoblastic

Leukemia Patients. North Clinical Istanbul. 2023.

 Koç BS, Tekkeşin F, et al. Impact of Childhood Cancer on Parental Psychology. Journal of Clinical Medicine.

2024.

 Tekkeşin F, et al. Treatment Approaches in Relapsed-Refractory Infantile Fibrosarcoma. Journal of Paediatrics

and Child Health. 2025.

Additional Publications (Originally Published in Turkish)

 Tekkeşin F, İskender D, et al. Severe (Complicated) Varicella Infection in an Adolescent Girl with Selective IgM

Deficiency: A Case Report.

 Tekkeşin F, Ceyhan M. An Infant Presenting with Fever and Wheezing: What Is the Diagnosis?

 Tekkeşin F, et al. Steroid-Induced Hepatotoxicity in an Adolescent with T-Cell Lymphoblastic Lymphoma: A

Case Report.

 Koç BS, Tekkeşin F, et al. Diagnostic Clues of Acute Leukemia in Childhood for Non-Hematologists.

 Çakı Kılıç S, Tekkeşin F, et al. Pediatric Secondary Hemophagocytic Lymphohistiocytosis: A Single-Center

Experience.

 Oskay K, Tekkeşin F, et al. Spontaneous Tumor Lysis Syndrome and Acute Renal Failure in a 12-Year-Old

Patient: A Case Report.

 Tekkeşin F, et al. Congenital Thrombotic Thrombocytopenic Purpura as a Rare Cause of Recurrent

Thrombocytopenia in Childhood.

Professional Memberships

 Turkish Society of Hematology

 Active contributor to national and multicenter pediatric hematology and oncology research collaborations

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