Platelet Disorder, Familial, with Associated Myeloid Malignancy, also known as fpdmm, is related to qualitative platelet defect and chronic myelomonocytic leukemia. An important gene associated with Platelet Disorder, Familial, with Associated Myeloid Malignancy is RUNX1 (RUNX Family Transcription Factor 1). Affiliated tissues include myeloid and bone marrow, and related phenotypes are prolonged bleeding time and impaired platelet aggregation