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Plaque

By Heather Brannon, MD, About.com

Updated: December 26, 2007

About.com Health's Disease and Condition content is reviewed by Casey Gallagher, MD

Definition:

An elevated, solid, superficial lesion more than .5 cm in diameter. A plaque differs from a nodule in it's height. A plaque tends to be flat over the whole surface and a nodule is rounded.

Rashes that are Typically Plaques

Pronunciation: PLAK
Common Misspellings: plak, plack

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