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Hypertrophic Scars

By , About.com Guide

Updated: December 12, 2007

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Hypertrophic Acne Scar

Hypertrophic Acne Scar

Image © Angela Palmer
Definition:

Raised scars caused by an overproduction of collagen. A hypertrophic scar looks like a raised, firm mass of tissue. Keloids are a form of hypertrophic scarring. They occur when scar tissue grows beyond the borders of the original wound.

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