Among these 41 genes, the only gene shared by MS and one or more of IBD, UC or CD was GPR25, which was Bonferroni significant for MS (pSMR = 1.18 × 10−9, pHEIDI = 0.21), IBD (pSMR = 2.91 × 10−10, pHEIDI = 0.12) and UC (pSMR = 4.98 × 10−8, pHEIDI = 0.63), but not CD (pSMR = 4.82 × 10−5, pHEIDI = 0.63). This evidence concerns the gene GPR25 and myeloid sarcoma.