"inflammatory (e.g. multiple sclerosis, Sjögren disease)"
"infective (e.g. tabes dorsalis, HIV-related vacuolar myelopathy)"
"ischaemia (e.g. posterior spinal artery syndrome)"
"tumour (e.g. spinal metastasis)"
"spondylosis (e.g. compressive myelopathy)"
"collections (e.g. spinal epidural haematoma or spinal epidural abscess)"
"metabolic/toxic (e.g. subacute combined degeneration of the cord, copper deficiency myeloneuropathy, vitamin E deficiency, methotrexate-induced myelopathy)"
"hereditary (e.g. leukoencephalopathy with brainstem and spinal cord involvement and lactate elevation (LBSL), Friedreich ataxia, hypomyelination with brainstem and spinal cord involvement and leg spasticity (HBSL))"