Annulus migrans; Benign migratory glossitis; Glossitis areata exfoliativa; Lingual erythema migrans; Wandering rash of the tongue
Definition:
An anomaly of the tongue characterized by loss (atrophy) of filiform papillae of the tongue, leaving areas of erythema (redness), surrounded by a serpiginous, white, hyperkeratotic border. The name geographic tongue refers to an appearance that is said to be similar to a map.