急性淋巴细胞白血病(acute lymphoblastic leukemia,ALL)是儿童时期最常见的恶性肿瘤,占儿童白血病的70%[1]。典型病例多表现为发热、出血、贫血、骨骼疼痛、肝脾淋巴结肿大等浸润症状,一般诊断不难。但少数首发症状不典型,而以某脏器损害致某一局部症状为突出表现时则不易诊断 Acute lymphoblastic leukemia (ALL) is the most common malignancy in childhood, accounting for 70% of childhood leukemia [1]. More typical cases of fever, bleeding, anemia, bone pain, swollen lymph nodes and other infiltration symptoms, the general diagnosis is not difficult. However, a small number of first-onset symptoms are not typical, but to some organ damage caused by a local symptom is outstanding performance is not easy to diagnose