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Ghost cells are swollen eosinophilic epithelial cells that have lost their nuclei but retain the cellular and nuclear outline. Pathologic ghost cell formation could be the process of aberrant keratinization or the result of coagulative necrosis. Ghost cells have been described in several odontogenic lesions, which include calcifying epithelial odontogenic cysts or tumours like odontomas, ameloblastic fibroodontomas, and ameloblastomas. This article present a view on the formation of ghost cells with proposal/introduction of a classification for ghost cell lesions of the oral cavity in an attempt to organize these lesions for the better understanding and academic purpose.