CONSORT diagram describing the subgroups involved in the various analyses within the study, including the analysis of NGS findings and their frequency; analysis of procedural safety and biopsy yield; analyses of NGS adequacy and mean TC%, needle passes, and procured tissue volume; overall NGS adequacy; and analysis of MIBG uptake versus TC%. MIBG, meta-iodobenzylguanidine; NBL, neuroblastoma; NGS, next-generation sequencing; SUV, standard uptake value; TC%, tumor cell percent.