cellular phase chronic idiopathic myelofibrosis https://www.malacards.org/card/cellular_phase_chronic_idiopathic_myelofibrosis DOID:8106 Prefibrotic/Early Primary myelofibrosis PMFPES ONCOTREE:PMFPES MEDGEN:275741 primary myelofibrosis, Prefibrotic stage chronic idiopathic myelofibrosis, cellular phase MONDO:0004463 Primary myelofibrosis characterized by bone marrow hypercellularity and the presence of atypical megakaryocytes. There is no increase in the percentage of myeloblasts and no significant increase in reticulin or collagen fibrosis in the bone marrow. UMLS:C1516553 primary myelofibrosis, Prefibrotic/early stage NCIT:C41237 GARD:0024019 chronic idiopathic myelofibrosis, Prefibrotic stage primary myelofibrosis idiopathic disease