Figure 2.

Examination after hospitalization 8 months later. (A) There were no obvious abnormalities on the head magnetic resonance imaging. (B) Bone marrow aspiration reveals large amounts of middle and late granulocytes. (C) Granulocytes are found in cerebrospinal fluid depositions. (D) Fluorescence in situ hybridization shows no abnormalities in the ETO/AML1, MLL, PML/RARA, or CBFβ loci. (E) Detection of the copy number of the major type BCR/ABL1 fusion gene by real-time quantitative polymerase chain reaction. (F) Karyotype analysis showing a Philadelphia chromosome.