IWG-MRT Myelofibrosis Cytogenetic/Molecular Relapse

**Semantic type:** Finding

**Definition:** Re-emergence of a pre-existing cytogenetic or molecular abnormality that is confirmed by repeat testing (adapted from Revised Response Criteria for Myelofibrosis: International Working Group-Myeloproliferative Neoplasms Research and Treatment (IWG-MRT) and European LeukemiaNet (ELN) consensus report. BLOOD 22 AUGUST 2013 x VOLUME 122 NUMBER 8)