Spontaneous conus infarction with"snake-eye appearance"on magnetic resonance imaging:A case report and literature review  

作　　者：Qiao-Yu Zhang Lin-Ying Xu Ming-Li Wang Hua Cao Xiao-Fei Ji 

机构地区：[1]Department of Neurology,The First Affiliated Hospital of Dalian Medical University,Dalian 116011,Liaoning Province,China [2]Department of Neurology,Nanchuan People's Hospital Affiliated to Chongqing Medical University,Chongqing 408400,China

出　　处：《World Journal of Clinical Cases》2023年第9期2074-2083,共10页世界临床病例杂志

摘　　要：BACKGROUND Infarction of the conus medullaris is a rare form of spinal cord infarction.The first symptom is usually acute non-characteristic lumbar pain,followed by lower limb pain,saddle numbness,fecal incontinence,and sexual dysfunction.Spontaneous conus infarction with"snake-eye appearance"on magnetic resonance imaging has rarely been reported.CASE SUMMARY We report a 79-year-old male patient with spontaneous conus infarction who had acute lower extremity pain and dysuria as the first symptoms.He did not have any recent history of aortic surgery and trauma.Magnetic resonance imaging revealed a rare"snake-eye appearance."In addition,we reviewed the literature on 23 similar cases and summarized the clinical features and magnetic resonance manifestations of common diseases related to the"snake-eye sign"to explore the etiology,imaging findings,and prognosis of spontaneous conus infarction.CONCLUSION We conclude that acute onset of conus medullaris syndrome combined with"snake-eye appearance"should be strongly suspected as conus medullaris infarction caused by anterior spinal artery ischemia.This special imaging manifestation is helpful in the early diagnosis and treatment of conus infarction.

关 键 词：Spinal cord disease INFARCTION PARALYSIS DYSURIA Magnetic resonance imaging Case report 

分 类 号：R445.2[医药卫生—影像医学与核医学] R744[医药卫生—诊断学]