Purpose: To compare the levels of matrix metalloproteinase-1 (MMP-1), MMP-8, MMP-13 and tissue inhibitor of metalloproteinases (TIMPs) in keloid skin tissue with normal skin in the same patient and with normal discarded skin tissue (control). The investigators aim to correlate between levels of MMPs in patients with keloid scarring in comparison with normal and discarded tissue.
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Correlate the level of matrix metalloproteinases in keloid tissue versus normal skin
Timeframe: One time office visit for keloid excision, there will be no follow up visits for patient. Keloid tissue will be analyzed in Henry Ford Hospital laboratory after excision.