Merck Manual

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Geographic Tongue (with Fissured Tongue)
Geographic Tongue With Fissures
Geographic Tongue (with Fissured Tongue)

Benign migratory glossitis (geographic tongue) exhibiting zones of depapillation of the dorsal and lateral tongue surrounded by raised white-yellow borders. The tongue also shows fissuring (deep grooves on the top and sides of the tongue), which often coexists with geographic tongue.

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