[Salivary gland heterotopia in the bone tissue of the mandible]

A rare case, heterotopia of the salivary gland in a female patient with repeated recurrences of radicular cysts of the mandible, is described. Histologic examination of removed material revealed dystopic acinar tissue in the subepithelial layer of the radicular cyst. A hypothesis on the possible effect of acinar heterotopic tissue on recurrences of the cystic process is offered.