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Leukoedema appears as a white opalescence of the buccal mucosa that disappears when the mucosa is stretched and reappears upon relaxation. This is a normal anatomical variation, which is more common in people with dark skin and especially in smokers.

Figure 1: Leukoedema. Note the white opalescence on the right buccal mucosa.
Figure 2: Leukoedema disappears on stretching the mucosa.
Figure 3: Leukoedema. Note the white appearance on the right buccal mucosa.
Figure 4: Leukoedema on the left buccal mucosa in a bidi smoker.
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