Highlights & Basics
- Transverse myelitis (TM) is a heterogeneous focal inflammatory disorder of the spinal cord characterized by acute or subacute development of motor weakness, sensory impairment, and autonomic dysfunction.
- TM causes motor weakness, a sensory impairment below the lesions, and bowel and bladder dysfunction.
- Clinical characteristics and magnetic resonance imaging (MRI) of the spinal cord classify TM into acute partial or longitudinally extensive variants.
- The presence of TM is confirmed by lumbar puncture demonstrating increased white blood cell count and absence of infection, with or without spinal cord MRI revealing a cord lesion that enhances after gadolinium administration.
- For people with a characteristic brain MRI, the acute partial variant suggests a high future risk of developing multiple sclerosis (MS).
Quick Reference
History & Exam
Key Factors
Other Factors
Diagnostics Tests
Treatment Options
Definition
Epidemiology
Etiology
Pathophysiology
Images
Sagittal T2-weighted MRI of cervical spinal cord showing myelitis lesion
Axial T2-weighted MRI of cervical spinal cord showing myelitis lesion
Sagittal T2-weighted MRI showing multiple sclerosis-related myelitis lesion
Sagittal T2-weighted MRI showing longitudinally extensive TM lesion
Sagittal T1-weighted MRI showing enhancement of neuromyelitis optica-related lesion
The McDonald criteria for the diagnosis of multiple sclerosis
Citations
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Sechi E, Shosha E, Williams JP, et al. Aquaporin-4 and MOG autoantibody discovery in idiopathic transverse myelitis epidemiology. Neurology. 2019 Jul 23;93(4):e414-20.[Abstract]
de Seze J, Lanctin C, Lebrun C, et al. Idiopathic acute transverse myelitis: application of the recent diagnostic criteria. Neurology. 2005 Dec 27;65(12):1950-3.[Abstract]
Weinshenker BG, Wingerchuk DM. Neuromyelitis spectrum disorders. Mayo Clin Proc. 2017 Apr;92(4):663-79.[Abstract][Full Text]
Weinshenker BG, O'Brien PC, Petterson TM, et al. A randomized trial of plasma exchange in acute central nervous system inflammatory demyelinating disease. Ann Neurol. 1999 Dec;46(6):878-86.[Abstract]
Rae-Grant A, Day GS, Marrie RA, et al. Practice guideline recommendations summary: disease-modifying therapies for adults with multiple sclerosis. Neurology. 2018 Apr 24;90(17):777-88.[Abstract][Full Text]
Cortese I, Chaudhry V, So YT, et al. Evidence-based guideline update: plasmapheresis in neurologic disorders: report of the Therapeutics and Technology Assessment Subcommittee of the American Academy of Neurology. Neurology. 2011 Jan 18;76(3):294-300.[Abstract][Full Text]
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