Geographic Tongue
A benign inflammatory condition of the tongue dorsum characterised by migratory zones of erythema with white-yellow borders, formally termed benign migratory glossitis in some classifications.
Full Definition
Geographic tongue presents as irregular, map-like patches of erythema caused by desquamation of filiform papillae, surrounded by slightly elevated whitish-yellow margins. The lesions are migratory, resolving in one area and appearing in another, sometimes within hours. The condition is typically asymptomatic but may cause sensitivity to spicy or acidic foods. Editors should distinguish this term from 'erythema migrans' (the preferred synonym in some classification systems) and from the tick-borne dermatological condition of the same name. It is not a potentially malignant disorder.
Usage
Usage note: When editing, verify the author uses 'erythema migrans' consistently and has not conflated the oral and systemic uses of the term.
In Context
- "Geographic tongue was identified as an incidental finding during the patient's routine oral examination." — Dental examination report
- "Authors must clarify whether 'erythema migrans' refers to the oral condition or the cutaneous manifestation of Lyme disease." — Editorial style note