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Nodules
Nodular Acne
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"Nodules"

From Angela Palmer,
Your Guide to Acne.
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About.com Health's Disease and Condition content is reviewed by Casey Gallagher, MD
Definition: An inflamed acne lesion presenting as a hard, painful lump under the skin. Nodules occur when there is a deep break in the follicle wall and contaminated debris empties into the dermis, infecting adjoining follicles.
Updated: December 21, 2007
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