When Flow Voids Are Missed: Delayed Diagnosis of Foix–Alajouanine Syndrome—A Case Report
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 characte...