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  • Title: [Acute mixed lineage leukemia showing resistance to AML and ALL therapy].
    Author: Kawashima H, Iizuka Y, Kondou W, Hirota H, Okuyama Y, Kanou M, Ichii S, Murakami J, Tsuchiya T, Sawada T.
    Journal: Rinsho Ketsueki; 1993 May; 34(5):643-8. PubMed ID: 7686236.
    Abstract:
    A 51-year-old female was who admitted complaining of cough and slight fever and lower limb petechia. The laboratory examinations revealed leukocytosis (49,400/microliters) with blasts (71%) in the peripheral blood. The NCC was 30 x 10(4)/microliters with 84.8% blasts in the bone marrow. Myeloperoxidase staining was positive for 6% of blasts. Auer rods were not seen in some blasts. Thus, acute myeloblastic leukemia (M1) was diagnosed according to FAB classification. In the peripheral blood, 43.3% of blasts expressed CD19, 10.3% of blasts expressed CD20 and 55.6% of blasts expressed CD33 on admission. Though she received two courses of DCMP according to the DCMP-85 protocol, and one combined course of mitoxantrone, etoposide, and Ara-C. The NCC was 20.0 x 10(4)/microliters with 70% blasts in the bone marrow. CD19 was expressed by 72.4% of blasts and 35.0% expressed CD20. The ALL-90 protocol was started, but remission was not achieved. Thus this case was considered to be acute mixed lineage leukemia.
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