Neuritis
Neuritis is inflammation of a nerve. There is involvement of inflammatory white blood cells - predominantly lymphocytes (see more information on blood and circulation in the chest cavity). These strip off the outer lining of the nerve, called myelin, and thereby prevent it functioning properly, since myelin is essential for effective conduction along nerves. While this may be a complication of other conditions such as kidney disease, it may be an isolated event involving only one nerve affecting, for example that from the back of the eye causing blurring of vision and pain on moving the eyes (called retro bulbar neuritis), or if it involves lots of different nerves (called mononeuritis multiplex) it may be the presenting feature of conditions such as systemic lupus erythematosis. Isolated episodes of neuritis may resolve spontaneously. Those associated with other underlying disorders may respond to the management of the disorder.
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