(GVHD)andthecasefatalityis21%In22%,diagnosisisprecededbytaperingthecorticosteroidsgivenasatreatmentforGVHDWereportafatalcaseofBOOPaftertaperingthecorticosteroidsthatthepatientreceivedforaPneumocystisjiroveciipneumoniaafterstemcelltransplantationKeywords:BronchiolitisObliteransOrganizingPneumoniaPneumonia, Pneumocystis, StemCell...