title: A bluish nodule with rapid enlargement: a diagnostic challenge.
authors.affiliation: Dermatology Department, Coimbra University Hospital Centre, Coimbra, Portugal.
authors.forename: M
authors.initials: M
authors.lastname: Pinto-Gouveia
authors.affiliation: Dermatology Department, Coimbra University Hospital Centre, Coimbra, Portugal.
authors.forename: A
authors.initials: A
authors.lastname: Gameiro
authors.affiliation: Dermatology Department, Coimbra University Hospital Centre, Coimbra, Portugal.
authors.forename: J C
authors.initials: JC
authors.lastname: Cardoso
authors.affiliation: Dermatology Department, Coimbra University Hospital Centre, Coimbra, Portugal.
authors.forename: O
authors.initials: O
authors.lastname: Tellechea
authors.affiliation: Dermatology Department, Coimbra University Hospital Centre, Coimbra, Portugal.
authors.forename: A
authors.initials: A
authors.lastname: Moreno
authors.affiliation: Dermatology Department, Coimbra University Hospital Centre, Coimbra, Portugal.
authors.forename: A
authors.initials: A
authors.lastname: Figueiredo
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology*; D000368:Aged; D003937:Diagnosis, Differential; D005153:Facial Neoplasms / Q000473:pathology*; D006801:Humans; D008297:Male