Normal Pigmentation: Definition, Etiology, Clinical features, Differential diagnosis, Treatment
Definition and etiology: Increased melanin production and deposition in the oral mucosa may often be a physiological finding, particularly in dark-skinned individuals.
- This type of pigmentation is persistent and symmetrical
- Clinically presents as asymptomatic black or brown areas of varying size.
- The gingiva is most commonly affected, followed by the buccal mucosa, palate, and lips.
- The pigmentation is more prominent in areas of pressure or friction, and usually becomes more intense with increasing age.
Laboratory tests: Histopathological examination.
- Addison disease,
- Smoker’s melanosis,
- Drug-induced pigmentation,
- Pigmented nevi,
- Amalgam tattoo.