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简介：AbstractIntroduction:Primary angiitis of the central nervous system (PACNS) is a vasculitis confined to the CNS. A small proportion of the lesions may present as a tumor-like mass, which is rarely seen in children.Case presentation:A 5-year-old girl was admitted to our hospital because of an intermittent headache. Brain imaging suggested a space-occupying lesion in the right cerebral hemisphere. The final diagnosis was PACNS with a lymphocytic pattern by stereotactic brain biopsy. Her condition improved after immunotherapy.Conclusion:Pediatricians should consider the possibility of PACNS when encountering intracranial tumor-like lesions. Early diagnosis of tumor-like PACNS and prompt immunotherapy could improve the long-term prognosis and avoid surgery.

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简介：[摘要]目的：探讨补体C3、C4、肝纤维化4项及无创诊断模型与乙肝肝硬化Child-Pugh分级相关性。方法：选择2019年1月至2020年12月经本院收治100例乙肝肝硬化患者为观察组，同期选择50例健康体检者为对照组，比较两组补体C3、C4水平，且根据Child-Pugh分级分作A级组、B级组及C级组，测量各组补体C3、C4、肝纤维化4项水平，计算无创诊断模型，经Spearson分析补体C3、C4、肝纤维化4项水平、无创诊断模型与Child-Pugh分级的相关性。结果：观察组补体C3、C4水平高于对照组（P＜0.05）；经Spearson分析，补体C3、C4与Child-Pugh分级呈负相关，肝纤维化4项水平、无创诊断模型与Child-Pugh分级呈正相关。结论：补体C3、C4在乙肝肝硬化患者中呈低表达，且与Child-Pugh分级密切相关。