Resolution of bullous pemphigoid and improvement of vitiligo after successful treatment of squamous cell carcinoma of the skin.

The significance of the association of malignant diseases with bullous pemphigoid is still unknown. We report a case of squamous cell carcinoma of the skin associated with both bullous pemphigoid and vitiligo. It is possible that there is a common underlying pathogenic mechanism involved in the co-existence of these three skin diseases as successful treatment of the carcinoma was accompanied by resolution of the bullous pemphigoid and improvement of the vitiligo.