Researchers from St. Jude Children’s Research Hospital and the National Cancer Institute published the largest pediatric cancer structural‑variant (SV) dataset to date in Cancer Cell. The pan‑cancer analysis catalogs SV landscapes across childhood malignancies, identifying recurrent rearrangements, novel driver events, and patterns that differ from adult tumors. The resource maps breakpoint hotspots and links SV signatures to tumor type, age and clinical outcome, providing an open dataset for target discovery and biomarker development. Authors emphasized implications for diagnostic assay design, since many pediatric SVs evade detection by standard short‑read sequencing and clinical panels. The dataset is intended to accelerate rare‑disease genomics, inform trial design for targeted agents and guide development of therapies addressing rearrangement‑driven biology in pediatric oncology.