Concomitant endogenous and exogenous etiology for gingival pigmentation
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Oral pigmented lesions can be physiological or pathological, exogenous or endogenous, as well as focal, multifocal, or diffuse. Among them, the oral melanotic macule (OMM) is a small, well-delimited brown-to-black macule, often affecting the lip and gingiva. Amalgam tattoo (AT) is a grey or black area of discoloration on the oral mucosa as a result of entry of dental amalgam into the soft tissues, commonly gingiva and alveolar ridge. Herein, we present a patient with gingival pigmentation with features of both OMM and AT in the same location.
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Amalgam tattoo, Histopathology, Melanotic macule, Oral mucosa, Pigmentation disorders
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Inglês
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Dermatology Online Journal, v. 27, n. 8, 2021.
