When geographic tongue occurs on the dorsal tongue, the erythematous areas are described as

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Quizplus · Accepted Answer

In geographic tongue, the erythematous areas on the dorsal tongue are devoid of filiform papillae and therefore are appropriately described as depapillated. The erythematous areas seen on the dorsal tongue in geographic tongue are not caused primarily by inflammation. Geographic tongue is not an allergic reaction. Geographic tongue is not a fungal infection.

When Geographic Tongue Occurs on the Dorsal Tongue, the Erythematous