Spinal Cord Injury — Assessment

A 28-year-old male presents to the emergency department 2 hours after a motorcycle collision with hyperextension injury to the cervical spine. On examination, he has intact motor function in the upper and lower extremities bilaterally, but complete loss of pain and temperature sensation below the C5 dermatome on the right side, with preserved crude touch and proprioception. The left side shows normal sensation throughout. MRI reveals a central cord contusion without fracture. Which spinal cord syndrome best describes this clinical presentation?

A 45-year-old woman is brought to the hospital 4 hours after a fall from a height of 15 feet onto her back. She reports complete loss of motor function and pain sensation below the T8 dermatome bilaterally, but retains the ability to sense vibration and joint position in her lower extremities. Rectal examination confirms preserved anal sphincter tone. MRI shows a complete transection of the spinal cord at T8 with no epidural hematoma. Which of the following best describes the neurological status according to the ASIA Impairment Scale?