segmental demyelination

segmental demyelination
degeneration of the myelin sheath in segments between successive nodes of Ranvier, with preservation of the axon; seen in a variety of polyneuropathic conditions.

Cross-section of sural nerve in chronic inflammatory demyelination polyradiculoneuropathy. (A), Segmental demyelination; (B), relatively unaffected area.

Medical dictionary. 2011.

Look at other dictionaries:

  • Charcot-Marie-Tooth disease — A neuromuscular disease, the most common inherited disorder of peripheral nerves, characterized by progressively debilitating weakness. The disease is also called peroneal muscular atrophy and hereditary motor and sensory neuropathy. The foremost …   Medical dictionary

  • diabetic neuropathy — progressive damage to the nerves seen in some people with long standing diabetes. It most commonly affects the legs, causing pain or numbness working up from the feet. There is no cure but drugs can sometimes be used to control the discomfort… …   Medical dictionary

  • lead neuropathy — a form of segmental (demyelination) neuropathy seen with chronic lead poisoning; see under poisoning …   Medical dictionary

  • acute polyradiculoneuritis — a common type of ascending paralysis in dogs, clinically similar to human Guillain Barrй syndrome; ventral roots of spinal nerves, and other peripheral nerves, undergo segmental demyelination. It was first seen in hunting dogs that had had… …   Medical dictionary

  • Transverse myelitis — Classification and external resources An MRI showing lesion of Transverse myelitis (the lesion is the lighter, oval shape at center right), this MRI was taken 3 months after patient recovered ICD 10 …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”