title: Pigmented basal cell carcinoma mimicking a superficial spreading melanoma.
abstract: Basal cell carcinoma is the most common form of skin cancer, especially in elderly people. Pigmented basal cell carcinoma is a rare subtype and has been described in the literature as a nodular and hyperpigmented lesion; rarely, it can appear as an extensive pigmented plate, which may be clinically indistinguishable from superficial spreading melanoma and Bowen disease. Dermatoscopy has a high sensitivity in the diagnosis of basal cell carcinoma. When Menzies criteria are used; however, the final diagnosis is made by histopathology. The objective of the present report is to analyze the case of a patient with pigmented basal cell carcinoma simulating a superficial spreading melanoma.
authors.affiliation: Teledermatología, Centro de especialidades San Lázaro, Puente Alto, Santiago, Chile. Address: Centro de especialidades primarias San Lázaro, Sargento Menadier 1092, Puente Alto, Santiago, Chile. Email: hasbuna@gmail.com.
authors.forename: Paula
authors.initials: P
authors.lastname: Hasbún Acuña
authors.affiliation: Facultad de Medicina, Universidad de los Andes, Santiago, Chile.
authors.forename: Roberto
authors.initials: R
authors.lastname: Cullen Aravena
authors.affiliation: Anatomía Patológica, Hospital Clínico Metropolitano La Florida Doctora Eloísa Díaz Insunza, Santiago, Chile.
authors.forename: César
authors.initials: C
authors.lastname: Maturana Donaire
authors.affiliation: Anatomía Patológica, Hospital Clínico Metropolitano La Florida Doctora Eloísa Díaz Insunza, Santiago, Chile.
authors.forename: Raúl
authors.initials: R
authors.lastname: Ares Mora
authors.affiliation: Departamento de Dermatología, Hospital Clínico Metropolitano La Florida Doctora Eloísa Díaz Insunza, Santiago, Chile.
authors.forename: Ninoska
authors.initials: N
authors.lastname: Porras Kusmanic
mesh_terms: D001913:Bowen's Disease / Q000175:diagnosis / Q000473:pathology; D002280:Basal Cell Carcinoma / Q000175:diagnosis* / Q000473:pathology; D046169:Dermoscopy / Q000379:methods; D005260:Female; D006801:Humans; D008545:Melanoma / Q000175:diagnosis* / Q000473:pathology; D008875:Middle Aged; D012680:Sensitivity and Specificity; D012878:Skin Neoplasms / Q000175:diagnosis* / Q000473:pathology
keywords:  Bowen's disease;  basal cell carcinoma; melanoma