P411: SF3B1 MUTATIONS IN AML ARE STRONGLY ASSOCIATED WITH MECOM REARRANGEMENTS AND MAY BE INDICATIVE OF AN MDS PRE-PHASE. (23rd June 2022) - Huber, S.; Hutter, S.; Meggendorfer, M.; Hoermann, G.; Walter, W.; Baer, C.; Kern, W.; Haferlach, T.; Haferlach, C.