transverse myelitis

A heterogeneous focal inflammatory disorder of the spinal cord
Etiology May present singly or:
- Demyelinating disorders: Multiple sclerosis, neuromyelitis optica, ADEM
- systemic inflammatory disorders: sarcoidosis, SLE...
Epidemiology
Clinical presentation Subacute bilateral symptoms
Motor: UMN AND LMN, flaccid then spastic
Autonomic dysfunction: bowel and bladder dysfunction, temperature dysregulation, or labile blood pressure

Differentials: Guillain-Barre syndrome, Vitamin B12 deficiency, nitrous oxide toxicity
Pathogenesis
Diagnostic investigations Essential to rule out surgically amenable lesions - MRI spine
Paraneoplastic → auto-antibodies: anti-Hu, CRMP5, anti-amphiphysin
Management Supportive
The usual "critically unwell autoimmune patient" stuff like IV methylpred, IVIG, or rituximab/cyclophosphamide - depending on the likely underlying cause