Transverse myelitis lower motor neuron signs in the upper limbs, and exclusively upper motor neuron signs in the lower limbs. Cervical lesions account for about 20% of cases. A lesion of the thoracic segment (T1–12) will produce upper motor neuron signs in the lower limbs, presenting as a spastic diplegia. This is the most common location of the lesion,<!-- <ref name="Alexander2015"> Transverse myelitis Transverse myelitis (TM) is a rare neurological condition in which the spinal cord is inflamed. "Transverse" implies that the inflammation extends across the entire width of the spinal cord. Partial transverse myelitis and partial myelitis are terms used to
Acute flaccid myelitis Acute flaccid myelitis Acute flaccid myelitis (AFM) is a rare but serious neurological illness of sudden onset, usually in children. It presents with localised limb weakness and visible changes on MRI. The cause is not currently agreed upon though many sources point to enterovirus 68 as potentially responsible for the condition. Although the illness is not new, a marked increase in cases has been seen since 2014. No effective treatment for the condition is known. Acute flaccid myelitis is not a new condition, but the incidence has spiked in recent years. A group in Texas reported having observed a pattern