From the Departments of ∗Dermatology

†Pathology, Lozano Blesa University Clinical Hospital of Zaragoza, Zaragoza, Spain.

Correspondence to: Elena Bularca, MD, Department of Dermatology, Lozano Blesa University Clinical Hospital of Zaragoza, Av. San Juan Bosco 15, 50005 Zaragoza, Spain. E-mail: [email protected].

The authors have no funding or conflicts of interest to disclose.

This article received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors.