Febrile syndrome: time course among affected patients. Seven patients (18%) developed prolonged noninfectious febrile syndromes shortly after HSCT. They received allografts from 2 MMURD, 2 MURD, 2 haploidentical donors (haplo), and 1 MRD. Five grafts were PB and 2 were BM. (Patient 2: PB graft, MMUD; patient 3: PB graft, MMUD; patient 8: PB graft, MUD; patient 10: BM graft, haplo; patient 13: PB graft, MUD; patient 15: PB graft, MRD; patient 30: BM graft, haplo.) Patient 10 and 30 received PTCY. Red, febrile syndrome prior to steroids; green, treatment with steroids for febrile syndrome; purple, acute GVHD; blue, chronic GVHD; X, death. Both deaths were from complications of severe acute GVHD, described in detail in Table 2.