Variations
Gustatory sweating or Frey's syndrome is another presentation of autonomic neuropathy. Gustatory sweating is brought on while eating, thinking or talking about food that produces a strong salivary stimulus. It is thought that ANS fibres to salivary glands have become connected in error with the sweat glands after nerve regeneration. Apart from sweating in the anhidriotic area of the body, it can produce flushing, goosebumps, drop of body temperature - vasoconstriction and paresthesia. Aberrant gustatory sweating follows up to 73% of surgical sympathectomies and is particularly common after bilateral procedures. Facial sweating during salivation has also been described in diabetes mellitus, cluster headache, following chorda tympani injury, and following facial herpes zoster.
Phantom sweating is another form of autonomic neuropathy. It can be observed in patients with nerve damage (following accidents), diabetes mellitus and as a result of sympathectomy. Phantom sweating is a sensation that one is sweating, while the skin remains dry. Sufferers can not distinguish whether it is real sweating or just a sensation. The phenomena is experienced in the anhidriotic, denervated area of the body, presenting an abnormal sympathetic nervous system function.
Read more about this topic: Compensatory Hyperhidrosis
Famous quotes containing the word variations:
“I may be able to spot arrowheads on the desert but a refrigerator is a jungle in which I am easily lost. My wife, however, will unerringly point out that the cheese or the leftover roast is hiding right in front of my eyes. Hundreds of such experiences convince me that men and women often inhabit quite different visual worlds. These are differences which cannot be attributed to variations in visual acuity. Man and women simply have learned to use their eyes in very different ways.”
—Edward T. Hall (b. 1914)