title: Delayed diffuse upper motor neuron syndrome after compressive thoracic myelopathy.
abstract: A 54-year-old man developed progressive spastic paraparesis beginning 2 weeks after a back injury caused by a subacute compressive thoracic myelopathy attributable to a post-traumatic arachnoid cyst. Three to 18 months after surgical decompression of the thoracic arachnoid cyst, the patient developed a diffuse predominantly upper motor neuron syndrome characterized by spastic quadriparesis, pseudobulbar paresis, and pseudobulbar affect. Retrograde corticospinal tract degeneration and upper motor neuron death after spinal cord injury is recognized. This case suggests that focal upper motor neuron injury can occasionally precipitate diffuse upper motor neuron dysfunction.
authors.affiliation: West Virginia University School of Medicine, Morgantown 26506-9180, USA.
authors.forename: J E
authors.initials: JE
authors.lastname: Riggs
authors.forename: S S
authors.initials: SS
authors.lastname: Schochet
authors.forename: J P
authors.initials: JP
authors.lastname: Hogg
mesh_terms: D016080:Arachnoid Cysts / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D019567:Back Injuries / Q000150:complications*; D018450:Disease Progression; D006801:Humans; D007796:Laminectomy; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D016472:Motor Neuron Disease / Q000209:etiology*; D011782:Quadriplegia / Q000209:etiology; D013117:Spinal Cord Compression / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D013577:Syndrome