1 Dermatología inflamatoria, pediátrica y oncológica Research Group, Galicia Sur Health Research Institute (Instituto Investigación Sanitaria Galicia Sur), SERGAS-UVIGO, Vigo, Spain.
2 Department of Dermatology, University Hospital of Pontevedra, Pontevedra, Spain.
3 Department of Pathology, University Hospital of Pontevedra, Pontevedra, Spain.