[Hailey-Hailey pemphigus--one only sees what one recognizes].

A diagnosis of Pemphigus Hailey-Hailey was made by histopathology after more than 20 years of suffering and medical treatment. The lesion had almost exclusively affected the vulvar region of a 44-year-old woman. A case like this confronts the gynecologists with the necessity of including a rare disease into particular consideration and investigation.