BACKGROUND AND PURPOSE: Spinal dural arteriovenous @entity292 are commonly missed on imaging or misdiagnosed as inflammatory or neoplastic processes. We reviewed a consecutive series of spinal dural arteriovenous @entity292 referred to our institution that were missed or misdiagnosed on initial imaging and studied the clinical consequences of missing or misdiagnosing the lesion. MATERIALS AND METHODS: We reviewed spinal dural arteriovenous @entity292 diagnosed at our institution between January 1, 2000, and November 1, 2014. A lesion was defined as "misdiagnosed" if initial MR imaging or CT myelography demonstrated characteristic imaging features of spinal dural arteriovenous @entity292 but the @entity1 was clinically or radiologically misdiagnosed. Outcomes included length of delay of diagnosis, @entity717 (increase in @entity25968 or Aminoff motor disability of >= 1 point) between initial imaging evaluation and diagnosis date, and posttreatment disability. RESULTS: Fifty-three consecutive spinal dural arteriovenous @entity292 that were initially misdiagnosed despite having characteristic imaging findings on MR imaging or CT myelography were included in our study. Eight @entity1 (18.9%) underwent spinal angiography before referral, which was interpreted as having negative findings but was either incomplete (6 cases) or retrospectively demonstrated the spinal dural arteriovenous @entity292 (2 cases). The median time of delayed diagnosis was 6 months (interquartile range, 2-14 months). Fifty-one @entity1 (96.2%) had @entity717 between the initial study, which demonstrated features of a spinal dural arteriovenous @entity292 , and diagnosis. Thirty-two @entity1 (60.4%) developed a new requirement for a walker or wheelchair. Following treatment, 21 @entity1 (41.2%) had an improvement of 1 point on the @entity25968 or Aminoff motor disability scale. CONCLUSIONS: Delayed @entity2457 with characteristic imaging features results in high rates of additional disability that are often irreversible despite surgical or endovascular treatment of the @entity292 .

Clinical Outcomes of XXXX with Delayed @entity2457 .

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity25968 :: ('231004(Tax:10090)', 'Gene') :: ['mRS'] @entity2457 :: ('MESH:D020785', 'Disease') :: ['diagnosis of spinal dural arteriovenous fistula'] @entity292 :: ('MESH:D005402', 'Disease') :: ['fistula', 'fistulas'] @entity717 :: ('MESH:D009069', 'Disease') :: ['increased disability']
@entity1 :: (9606,Species) :: ['Patients']
