It was also over-expressed in “Cluster C” GPCR-grouped medulloblastomas (5.66-fold, p = 0.01; Table 1), however these tumors fell into the Non-WNT/SHH subgroup and the same pattern of PTGER4 expression was not seen in that subgroup as a whole. The gene discussed is LPAR3; the disease is medulloblastoma.