MSFinals-3208

MSFinals-3208

A 30-year-old man is brought to the Emergency Department after being involved in an altercation, during which he was stabbed in his lower back. On examination, he has right leg weakness in all muscle groups. Further examination reveals that he has loss of vibration and proprioception on the same side. In his left leg, there is loss of pain and temperature sensation, but preserved motor strength. He has no problems with bladder or bowel retention. His motor strength is preserved in his upper limbs.
With which one of the following spinal cord syndromes is his presentation consistent?