患者女,7月龄。发热,鼻塞咳嗽7天伴恶心呕吐,发现腹部包块3天。患儿足月自然分娩,母亲孕期无服药及放射线接触史,父母均体健。T38.5,两下肢及颈部皮肤见有散在不对称出血点,全身浅表淋巴结未及,腹软,脾肋下12cm,质偏硬,无结节,表面不平边缘纯。血WBC10B×10~9/L,原粒0.5％,早幼粒4％,中件中幼粒10.5％。 Female patient, 7 months old. Fever, stuffy nose cough 7 days with nausea and vomiting, abdominal mass found 3 days. Children with full-term natural childbirth, mothers during pregnancy without medication and radiation exposure history, parents are healthy. T38.5, both lower extremity and neck skin scattered scattered asymmetric bleeding point, systemic superficial lymph nodes, abdominal soft, spleen rib 12cm, qualitative hard, no nodules, surface uneven edges pure. Blood WBC10B × 10 ~ 9 / L, 0.5% of the original particles, promyelocytic 4%, medium pieces of 10.5%.