“…The patients who developed GBS tended to have more systemic illness, and it is less clear if the GBS is related to cGVHD, immune reconstitution, infection, or even conditioning chemotherapy. 25,28,31 In 1 patient, it was thought to be a result of discontinuation of immunosuppression, and GBS was the presenting manifestation of cGVHD. In that patient, treatment with steroids, IVIg, plasmapheresis, and cyclosporine was necessary.…”