Question

what is the most likely diagnosis for a patient reporting an inability to feel hot shower water on their shoulders? syringomyelia cervical spine myelopathy peripheral neuropathy anterior spinal artery syndrome

Explanation:

Syringomyelia is characterized by a fluid-filled cyst (syrinx) in the spinal cord, which often disrupts the spinothalamic tract fibers that carry pain and temperature sensation. A classic presentation is a loss of pain and temperature sensation in a "cape-like" distribution covering the shoulders, matching the patient's symptom of not feeling hot water on their shoulders. Cervical myelopathy typically affects motor function and proprioception more prominently. Peripheral neuropathy causes distal, symmetric sensory loss (e.g., hands/feet). Anterior spinal artery syndrome impacts motor function and pain/temperature sensation below a level, but not in the specific shoulder cape distribution.

Answer:

Syringomyelia