结论儿童恶性淋巴瘤为常见儿童恶性肿瘤；疗效与病理分型和临床分期、规范治疗相关。

Conclusion Malignant lymphoma was common in childhood cancer, curative effect are related to pathology, clinical stage and regular treatment.

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通过对30例ATLS分析，显示肿瘤恶性程度高、临床分期晚、肿瘤体积大、白血病及恶性淋巴瘤为其高危因素。

Analysison 30 cases of ATLS showed that high malignant degree , advanced stage and bigger size of the tumor. leukemia and malignant lymphoma are high risk factors of ATLS.

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