[Analysis of 30 cases of chronic myeloid leukemia with non-myeloid blast crisis]

30 cases of chronic myeloid leukemia (CML) with non-myeloid blast crisis from 1966 to 1986 in PUMC Hospital were investigated. Morphologically 18 cases were lymphoblastic, 4 histiocytic, 3 basophilic, 2 erythro-leukemic, 2 megakaryocytic, and 1 monocytic, the ratio between male and female was 3.3:1, and their age ranged from 16 to 55 years. These results suggest that blast crisis of CML may involve many other cellular derivatives than the myeloid series of the pluripotential stem cells, Spleen was not palpable among half of the patients with lymphoblastic crisis, but all the cases with blast crisis of other morphological types had enlarged lives and spleen, especially those with histiocytic and monocytic crisis of CML. Most of cases of CML with non-myeloid blast crisis had poor prognosis with survival time of less than 6 months. However, cases of CML with lymphoblastic crisis had longer survival duration than those with non-myeloid blast crisis of other types.