这个词是什么意思？
A leukemia affecting young children characterized by SPLENOMEGALY, enlarged lymph nodes, rashes, and hemorrhages. Traditionally classed as a myeloproliferative disease, it is now considered a mixed myeloproliferative-mylelodysplastic disorder.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D054429 · MeSH 2026。
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