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Prof. Dr. Atila Tanyeli image

Department of pediatric haematology

Prof. Dr. Atila Tanyeli
paediatrics, bone marrow transplantation

About the department

The pediatric haematology department at Memorial Sisli Hospital Istanbul offers treatment for patients under 18 years of age with hematopoietic diseases. Early diagnosis and proper treatment planning are of great importance for the successful treatment of blood diseases, which are one of the most life-threatening diseases of childhood. Diagnosis is carried out in cooperation with specialists from the department of radiology, which has the most modern imaging equipment. Pediatric oncologists also work closely with specialists in pediatric surgery, orthopaedics, neurosurgery, otolaryngology and ophthalmology to provide comprehensive treatment. When developing a treatment regimen, doctors consider the child's age and general health. The competence of the department includes all types of bone marrow transplantation, including autologous, allogeneic and haploidentical. Doctors in the stem cell transplant department also take various measures to prevent infections transmitted to patients from the external environment.

Bone marrow transplantation is vital in treating congenital diseases such as thalassemia, Fanconi aplastic anaemia, immunodeficiency states, metabolic disorders, and acquired conditions such as leukaemia, developed aplastic anaemia, lymphoma, and neuroblastoma in childhood. The department has an experienced team of doctors, a nurse and a specially created service to ensure maximum comfort for children and their parents. In addition to high-quality medical care, the department provides competent psychological assistance.

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Treatment and diagnostic focus of the department


  • Neoplasms of the head and neck
  • Neoplasms why and adrenal glands
  • Neoplasms of soft tissues and bones
  • Retinoblastoma
  • Neoplasm of the brain
  • Leukaemia
  • Myelodysplastic syndrome
  • Lymphomas
  • Aplastic anaemia
  • Anemia Fanconi
  • Iron-deficiency anaemia
  • Diamond-Blackfan anaemia
  • Neutropenia
  • Thrombocytopenia
  • Thalassemia
  • Hemoglobinopathies
  • Wiskott-Aldrich Syndrome
  • Kostman syndrome


  • Anamnesis 
  • Physical examination (palpation)
  • Full blood test (a test to check the types and numbers of cells in the blood)
  • Lee White method (for determining coagulation time of venous blood)
  • Prothrombin index
  • Coagulation test (measure the blood's ability to clot)
  • Iron blood test
  • X-ray of flat bones
  • Sternal puncture (to obtain a sample of the bone marrow)
  • Computer tomography (CT scan) 
  • Ultrasound examination 
  • Positron emission tomography (PET)


  • Drug therapy 
  • Iron infusion
  • Anticoagulation therapy
  • Chemotherapy 
  • Radiation therapy 
  • Targeted (biological) therapy 
  • Bone marrow transplantation 
  • Chimeric antigen receptor T-cell therapy 
  • Other treatment options 
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Doctor profile


  • 1996 Professor
  • 1989 - 1996 Associate Professor
  • 1978 - 1983 Pediatrics Speciality Education, Cukurova University Faculty of Medicine 
  • 1972 - 1978 Medical Doctor Education, Istanbul University, Istanbul Faculty of Medicine


  • 2016 Pediatrist, Memory Sisli Hospital, Istanbul, Turkey
  • 2014 - 2016 Pediatric Hematology-Oncology Clinic / Marrow Transplantation Center, Yeni Yuzyil University Gaziosmanpasa Hospital
  • 1987 - 2014 Head of Pediatric Bone Marrow Center, Cukurova University

Awards, memberships, publications

  • European Bone Marrow Transplantation, American Society of Hematology 
  • European Society of Hematology, BFM Assembly, EHA and SIOP 
  • JACIE Inspector
  • Head of Pediatric Cancer Association
  • Head of Hospital Volunteers Association
  • Turkish Association of Hematology
  • National Association of Pediatrics
  • Association of Pediatric Hematology
  • Turkish Assembly of Pediatric Oncology
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