[Choristoma of the gastric mucosa: report of a case].

Choristomas are tumor like masses consisting of tissues that are histologically normals but in abnormal location. These are rare in oral cavity and occur generally in tongue. There are seven categories of choristomas on the basis of types of tissues recognized. The presenting case in a gastric mucosal choristoma type, and the treatment was surgical excision. No recurrence of the mass was revealed. Special care should be taken with lingual thyroïd choristoma, because 86% of the cases is the only functional thyroide tissue in the body.