Figure 1 The UMBRELLA SIOP-RTSG 2016 protocol logo Figure 1 | The UMBRELLA SIOP-RTSG 2016 protocol logo. The UMBRELLA signifies the ambitious aim to collect information concerning all paediatric primary renal tumours in a comprehensive multidimensional data registry, which includes embedded review of diagnostics, standardized biobanking, and treatment recommendations. CCSK, clear cell sarcoma of the kidney, MRTK, malignant rhabdoid tumour of the kidney, CMN, congenital mesoblastic nephroma, RCC, renal cell carcinoma. van den Heuvel-Eibrink, M. M. et al. (2017) Rationale for the treatment of Wilms tumour in the UMBRELLA SIOP–RTSG 2016 protocol Nat. Rev. Urol. doi:10.1038/nrurol.2017.163