Review Question - QID 7604

Figure 16 shows the CT scan of a 44-year-old woman who sustained a direct blow to the head after falling while snowboarding. She is unable to move her upper or lower extremities and has diffuse numbness. Examination reveals normal strength in the deltoid muscles bilaterally but 0/5 strength in the remaining upper or lower extremity muscle groups. She is absent light touch, pinprick, and proprioceptive function in her upper and lower extremities. She has decreased rectal tone and intact perirectal sensation with an intact bulbocavernosus reflex. The patient's spinal cord injury is best classified as