title: What is your diagnosis? Multiple cobblestone-like papules on the inner aspect of the lip.
authors.affiliation: Department of Dermatology, Parc de Salut Mar, Institut Municipal d'Investigació Médica, Barcelona, Spain. MEMartinezEscala@parcdesalutmar.cat
authors.forename: Maria E
authors.initials: ME
authors.lastname: Martínez-Escala
authors.forename: Montserrat G
authors.initials: MG
authors.lastname: Pena
authors.forename: Beatriz B
authors.initials: BB
authors.lastname: Paricio
authors.forename: Ramon M P
authors.initials: RM
authors.lastname: Vallverdú
mesh_terms: D002648:Child; D017573:Focal Epithelial Hyperplasia / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D008046:Lip / Q000473:pathology*; D008297:Male; D030361:Papillomavirus Infections / Q000175:diagnosis / Q000821:virology; D012075:Remission, Spontaneous