survival of 70%‐80% of patients. However, some important challenges remain in diagnosing
high‐risk tumors and identifying relevant targetable pathways offering new therapeutic
avenues. Previously, two molecular subclasses of HB tumors have been described, C1 and
C2, with C2 being the subgroup with the poorest prognosis, a more advanced tumor stage,
and the worst overall survival rate. An associated 16‐gene signature to discriminate the two …