Continued from Part 1

Melanin pigmentation – acquired causes

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Acquired melanosis of the oral mucosa may be a manifestation of systemic disease, cancer or of a simple local disorder. It is an important sign indicating the need for careful investigations of the individual. Continue reading →

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Pigmentation in mouth, which ranges from brown to black, may be due to superficial (extrinsic) or deep (intrinsic) causes. They may result from the localization of exogenous substances on or within the mucosa, or may be due to deposition in the tissues of endogenous pigments (for example substances produced by the body), of which melanin is the most common. Continue reading →