Polygenic scores were constructed using previously published genome‐wide significant variants for birth length (N = 5 SNPs), childhood height (N = 6 SNPs), and adult height (N = 413 SNPs) and examined for association in a case‐control set of 1538 neuroblastoma cases (257 MYCN‐amplified, 1154 MYCN‐unamplified) and 3390 controls of European ancestry with adjustment for five ancestry‐informative principal components. Here, MYCN is linked to neuroblastoma.