Superficial epidermolytic ichthyosis: A report of two families

Superficial epidermolytic ichthyosis (SEI), previously known as ichthyosis bullosa of Siemens, is a rare genetic skin condition, characterized by blisters and hyperkeratosis. It can be easily confused with epidermolytic hyperkeratosis, known now as epidermolytic ichthyosis, and genetic testing can be helpful in differentiating between the two conditions. We describe two children with SEI confirmed by genetic testing, including one with a novel mutation. We also describe other affected family members with SEI.