<unk>  causes a wide variety of neuropathic symptoms, due to damage to the spinal cord. Patients may experience severe chronic pain, abnormal sensations and loss of sensation, particularly in the hands. Some patients experience paralysis or paresis, temporarily or permanently. A syrinx may also cause disruptions in the parasympathetic and sympathetic nervous systems, leading to abnormal body temperature or sweating, bowel control issues, or other problems. If the syrinx is higher up in the spinal cord or affecting the brainstem, as in syringobulbia, vocal cord paralysis, ipsilateral tongue wasting, trigeminal nerve sensory loss, and other signs may be present. Rarely, bladder stones can occur at the onset of weakness in the lower extremities. Classically,<unk>  spares the dorsal column/medial lemniscus of the spinal cord, leaving pressure, vibration, touch and proprioception intact in the upper extremities. Neuropathic arthropathy, also known as a Charcot joint, can occur, particularly in the shoulders, in patients with<unk> . The loss of sensory fibers to the joint is theorized to lead to degeneration of the joint over time.
Syringomyelia
Diastematomyelia
Posterior cord syndrome
Occipital horn syndrome
Surfer's myelopathy
Vascular myelopathy
Central cord syndrome
Amyotrophic lateral sclerosis