A 33 year old woman is admitted after a severe motor vehicle collision with flexion injury to the thoracic spine. Neurologic examination shows bilateral flaccid paralysis below the lesion that later becomes spastic, absent pain and temperature sensation below the lesion, and preserved vibration and position sense. Which vascular territory or spinal cord region is most likely affected?
- A)Anterior two thirds of the spinal cordGABARITO
- B)Cauda equina
- C)Posterior columns only
- D)Conus medullaris
- E)Right hemicord
Explicação
Anterior two thirds of the spinal cord is correct. Anterior cord syndrome damages corticospinal and spinothalamic tracts while sparing the dorsal columns. It follows anterior spinal artery infarction or flexion injury and produces bilateral motor deficits plus... Ver explicação completa e trilha adaptativa →