Ans. A. Geographic tongue* Geographic tongue, also known as benign migratory glossitis and migratory stomatitis, is the correct answer.* The changing lesions are suggestive of a geographic map (hence geographic tongue) with pink continents surrounded by whiter oceans.* It is a recurrent, benign, usually asymptomatic, inflammatory condition, of unknown etiology, of the tongue, affecting nearly 2% of the general population.* Geographic tongue typically presents with migratory red lingual patches, which are irregularly shaped erythematous patches bordered by a white keratotic band. Tongue lesions exhibit central erythema because of atrophy of the filiform papillae of tongue epithelium.* Lesions may last days, months, or years. THE LESIONS DO NOT SCAR.* It being a benign asymptomatic condition, therefore requires no treatment.