Glioblastoma with metastasis to the bone marrow

Extraneural metastasis of glioblastoma (GBM) is rare but expected to increase in incidence as patients live longer. We present a rare case of GBM that has metastasised to the bone marrow shortly after completing standard of care treatment. This case highlights the importance of having a high index of suspicion, using next-generation sequencing testing and the urgent need for further research to identify treatment options for this population.