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Lesion

From , former About.com Guide

Updated December 21, 2007

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Definition: The word lesion is a catch-all phrase in dermatology used to point out a rash. Basically, it means "that thing you see." Usually a lesion is a discrete part of the rash.

For example, a mole is a lesion. Someone with many moles has many lesions. Someone with hives has many wheals - each one of these wheals is a lesion.

Pronunciation: LEE-zshun (noun)
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