Lingual lesions of generalized pustular psoriasis. Report of five cases and a review of the literature.

Geographic tongue and fissured tongue may be mucosal manifestations of generalized pustular psoriasis. All three disorders have polygenic inheritance patterns and affected patients may share genes. Five patients in three families with geographic tongue, fissured tongue, and generalized pustular psoriasis are described and the lingual lesions of generalized pustular psoriasis are reviewed.