Parakeratosis pustulosa

Pustular parakeratosis is a rare entity with few cases published nowadays. The lesions are limited to one or two fingers of the hands, being more frequent in girls during early childhood. Given that its appearance can sometimes simulate the first stages of others dermatological diseases such as psoriasis, it is important to complete an adequate anamnesis with the family history, as well as ruling out other differential diagnoses such as Hallopeau’s continuous acrodermatitis, mycosis, atopic dermatitis or contact dermatitis. The evolution is usually favourable, requiring topical treatments with emollients and, in refractory cases, topical corticosteroids. We present a case of this entity.