]> 2026-07-31T07:28:19+00:00 WBR0299 0 en A deficiency of dietary supplements Small fiber nerve damage caused by chronic uncontrolled diabetes mellitus A tumor that arises from the membranous layers surrounding the central nervous system Atrophy of the spinal muscles An abnormal fluid-filled spinal cord cavity Embryology A 30-year-old woman presents to the emergency department for a burn lesion in her left hand. Upon further questioning, the patient reports that she has burned her fingers on many occasions recently because she is unable to feel the burning sensation. On physical examination, the patient has bilateral loss of pain and temperature in her upper extremities with preserved sensations of touch and vibration. Neurological examination of her lower extremities does not reveal any abnormalities. What is the most likely cause of this patient's symptoms? E Neurology 2020-10-28T00:06:49Z 2459150.5047338 WBR0299