This oddly named syndrome involves psoriasis-like symptoms of the mouth, in which harmless but potentially painful lesions develop on the tongue. Red and white patches are often surrounded by a slightly elevated yellow border, resembling irregularly shaped geographic masses on a map. These lesions can cause a burning sensation or irritation. βThe cause of GT is unknown. However, situations and conditions producing stress, including allergies, hormonal disturbances, nutritional deficiencies, psychological disturbance, Reiterβs Syndrome, and even spicy foods are related to GT,β according to a 2005 case study.