* Department of Dermatology, Hospital Universitari Sagrat Cor, Grupo Quirónsalud, Barcelona, Spain; and

† Department of Pathology, Hospital Universitari General de Catalunya, Grupo Quirónsalud, Sant Cugat del Vallès, Barcelona, Spain.

Correspondence: Joan Ceravalls, MD, Department of Dermatology, Hospital Universitari Sagrat Cor, Grupo Quirónsalud, Viladomat Street, 288, E-08029 Barcelona, Spain (e-mail: [email protected]).

The authors declare no conflicts of interest.

All patients in this manuscript have given written informed consent for participation in the study and the use of their deidentified, anonymized, aggregated data and their case details (including photographs) for publication.