this case illustrates ( 1 ) the occurrence of striking erythrophagocytosis by lymphoblasts at the time of initial presentation of a patient with acute lymphocytic leukemia , ( 2 ) the fact that abnormalities of chromosome 20 can occur in patients with acute lymphocytic leukemia , and ( 3 ) the capability of lymphoid malignant lesions to show the simultaneous expression of antigens that are characteristic of different stages of lymphoid differentiation .
C0229613
time
C0023449
acute lymphocytic leukemia