真性动脉瘤指动脉管壁病变、弹性减低、结构薄弱形成的局限性动脉异常扩张。真性动脉瘤的瘤壁完整、保留血管壁各层结构，可以发生在动脉系统的任何部位，而以肢体主干动脉、腹主动脉和颈动脉较为常见。
目的探讨四肢真性动脉瘤的病因及诊断和治疗的特殊性。
Objective To explore the etiologic feature and specificity of diagnosis and treatment in true aneurysms of the extremities.
其中真性动脉瘤 例（ ％），假性动脉瘤8例（ ％），浅表先天性动静脉瘤例（％）；
Among them, cases( %) showed true aneurysm, 8 cases ( %) pseudoaneurysm, and cases (%) superficial congenital arteriovenous aneurysm.
目的探讨颅内动脉瘤破裂出血后在其破口周围所形成的假性动脉瘤与真性动脉瘤复合体的DSA影像学特征及分型。
Objective To discuss the DSA imaging characteristic and classification of the false aneurysm and true aneurysm complex at the rupture position after intracranial aneurysmal subarachnoid hemorrhage.
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