leukemia leukemia, non-human animal bovine neoplasm bovine leukemia https://github.com/monarch-initiative/mondo/issues/5252 A malignant (clonal) hematologic disorder, involving hematopoietic stem cells and characterized by the presence of primitive or atypical myeloid or lymphoid cells in the bone marrow and the blood which occurs in cattle NCIT:C131469 MONDO:0700135