本文报道一例少见的巨大椎动脉动脉瘤,小脑后下动脉(PICA)从它的腰部发出。作者应用同侧PICA 与对侧 PICK 吻合术,孤立动脉瘤,重建了 PICA循环。患者,男性,38岁,右利手。主诉头痛和左侧肢体无力,偶有限局性痉挛或左侧肢体抽动。神经系统检查:左侧肢体轻偏瘫,头颅 CT 扫描和血管造影显示一大型,有部分血栓形成的动脉瘤位于右椎动脉 This article reports a rare giant vertebral artery aneurysm with a posterior inferior cerebellar artery (PICA) from its waist. The authors applied ipsilateral PICA and contralateral PICK anastomosis to isolate aneurysms and reconstruct the PICA cycle. Patient, male, 38 years old, right-handed. Complaints of headache and weakness of the left limb, occasional convulsions or twitching of the left limb. Nervous system examination: The left limb was hemiparalysis. CT scans and angiography of the skull showed a large, partially thrombotic aneurysm located in the right vertebral artery.