Pemphigus erythematosus and thymoma

A sixty year old woman was found to have a benign thymoma and pemphigus erythematosus. Her skin disease was controlled with oral and topical corticosteroids. The association between thymoma and pemphigus erythematosus is discussed, and the literature reviewed. Most previous cases have also had myasthenia gravis and skeletal muscle antibodies. This is the first case in which neither of these was present.