When Flow Voids Are Missed: Delayed Diagnosis of Foix-Alajouanine Syndrome-A Case Report

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27 Oct 2026 0 comments

Introduction: Foix-Alajouanine syndrome (FAS) is a rare, progressive congestive ischaemic myelopathy caused by a spinal dural arteriovenous fistula (SDAVF). Because of its non-specific clinical presentation and subtle imaging features, FAS is frequently misdiagnosed; in particular, perimedullary flow voids-its characteristic imaging hallmark-are readily overlooked on initial MRI, leading to diagnostic delay and potentially harmful interventions. Case Presentation: We report the case of a...