===== Acute transverse myelitis =====
acute inflammation of gray and white matter in one or more adjacent spinal cord segments, usually thoracic.
=== Causes: ===
  * most commonly multiple sclerosis
  * neuromyelitis optica, infections, autoimmune or post-infectious (viral) inflammation, vasculitis, and certain drugs (amphtemaines, IV heroin, anti-parasitic/malarial).
=== Symptoms: ===
  * neck, back or head pain
  * band like tightness around torso
  * bilateral motor, sensory, and sphincter deficits below the level of the lesion.
=== Diagnosis: ===
  * MRI and CSF (monocyctes, protein mildly up, and IgG index high.)
  * IgG marker for neuromyelitis optica variant
=== DDx: ===
other transverse myelopathies B12, folate, Zn and Cu def's
vascular insufficiency and spinal tumour