| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.6 / 5 (514 reviews) | Istanbul, Turkey | — | — | Sarcoma surgery, CyberKnife | — | — | Planetree's Gold Certificate, International Accreditation System for Interventional Oncology Services (IASIOS) | |
| #2 | 4.3 / 5 (16 reviews) | Hamburg, Germany | — | — | Radiotherapy, Chemotherapy | — | — | International Organization for Standardization, Medical Travel Quality Alliance | |
| #3 | 4.6 / 5 (130 reviews) | Hamburg, Germany | — | — | Radiotherapy, CyberKnife | — | — | International Organization for Standardization, Medical Travel Quality Alliance | |
| #4 | 3.8 / 5 (6 reviews) | Madrid, Spain | — | — | Bone marrow transplantation, Allogenic bone marrow transplantation from an unrelated donor | — | — | World's Best Hospitals 2021 by Newsweek | |
| #5 | 4.8 / 5 (41 reviews) | Barcelona, Spain | 14,000+ treatments | Autologous bone marrow transplantation, Allogenic bone marrow transplantation from a related donor | — | — | Bookimed Award: Best pediatric hospital, World's Best Specialized Hospitals 2022 by Newsweek | ||
| #6 | 4.5 / 5 (52 reviews) | Frankfurt am Main, Germany | 36+ years | CyberKnife for brain tumor, Radiation therapy for brain tumor | — | — | TÜV AG Сompany Research & Investing Certificate, TOP German hospital according to 2019 Focus ranking | ||
| #7 | 4.4 / 5 (33 reviews) | Istanbul, Turkey | — | — | Brain tumor removal, Sarcoma surgery | — | — | International Organization for Standardization, Joint Commission International | |
| #8 | 5.0 / 5 (1 review) | Istanbul, Turkey | — | — | Cytogenetic study of the bone marrow | — | — | International Organization for Standardization, Joint Commission International | |
| #9 | 4.6 / 5 (127 reviews) | Bangkok, Thailand | — | — | Transnasal resection of tumor, CyberKnife | — | — | International Organization for Standardization, Joint Commission International | |
| #10 | 4.4 / 5 (32 reviews) | Istanbul, Turkey | 36+ years | Autologous bone marrow transplantation, Chemotherapy | — | — | The Baby-friendly Hospital Initiative (BFHI) by WHO and UNICEF, Turkish Medical Association |