Abstract: Cerebral infarction may present various symptoms of nervous system damage，but rarely manifests only as memory impairment，and infarction of the fornix column is more rare.Due to special anatomical characteristics，fornix column uncommonly becomes a site of infarction，which leads to highly increased possibilities of being ignored and misdiagnosed clinically.This article reports a case of bilateral fornix column infarction，and reviews related case reports，in which the anatomy，function，and causes of infarction of fornix column as well as infarction-induced cognitive impairment and prognosis are analyzed and summarized，to increase clinicians' knowledge to identify this disease and give appropriate treatment as early as possible.

Key words: Brain infarction；Fornix, brain；Acute disease；Fornix column；Cognition disorders；Case reports

摘要： 脑梗死可出现多种神经系统损害症状，以记忆障碍为唯一表现的脑梗死患者少见，其中穹窿柱梗死在临床上更为罕见。由于穹窿柱的解剖特点，使其不容易成为病变部位，在临床上容易被忽略和误诊。本文报道1例双侧穹窿柱梗死患者，并检索相关病例报道，分析总结穹窿柱解剖、功能、梗死原因、梗死后认知障碍及预后，以便遇到穹窿柱梗死患者时能够做到早期识别及治疗。

关键词: 脑梗死, 穹窿, 脑, 急性病, 穹窿柱, 认知障碍, 病例报告