Oral psoriasis: report of a case and review of the literature.

Psoriasis is a chronic inflammatory skin disease which very rarely affects the oral mucosa. In the present article, an interesting case of psoriasis with exclusive oral involvement is described. The patient's history, clinical, microscopic features, and HLA typing were consistent with a diagnosis of psoriasis. A review of the 68 reported cases of oral psoriasis is presented in table form.