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Definition of Dermatome

Dermatome: (1) A localized area of skin that is has its sensation via a single nerve from a single nerve root of the spinal cord. Shingles (herpes zoster) typically affects one or several isolated dermatomes. (2) A dermatome is also a cutting instrument used for skin grafting or slicing thin pieces of skin.

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=2954
Last Editorial Review: 8/28/2013

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