MYCN and neuroblastoma: In v12.5, and in the later version 12.8 of the classifier, the arm of peripheral neuroblastoma has the same calibrated score for the class “neuroblastoma” at the levels of Superfamily – Class, while the Subclass has three nodes: “MC Neuroblastoma, MYCN type”, “MC neuroblastoma, TMM negative” and “MC neuroblastoma, ALT/TERT TMM positive” (Fig. 1A).