Acrodermatitis continua of Hallopeau and geographic tongue are variants of pustular psoriasis

To the Editor: A recent article by Barron1 reported the successful use of secukinumab to treat acrodermatitis continua of Hallopeau (ACH) and oral psoriasis. The author described a patient with pustulation of the distal fingertips and an erosive mucositis predominantly affecting the tongue, also involving the hard and soft palate and gingiva, which she distinguishes from geographic tongue (GT).