Collision tumor: pigmented Bowen's disease and seborrheic keratosis

Bowen's disease is a type of squamous cell carcinoma in situ of the skin. The pigmented form is rare and represents less than 2% of cases. We report a case of a 74-year-old black man with a blackened and asymptomatic leg injury for about 6 months. Clinically, and under dermatoscopy, the injury...

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Detalles Bibliográficos
Autores principales: Fernandes, Karen de Almeida Pinto, Martinez, Diana Carolina Salamanca, Nobre, Aretha Brito, Campos-do-Carmo, Gabriella
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Sociedade Brasileira de Dermatologia 2018
Materias:
Images in Dermatology
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6106659/
https://www.ncbi.nlm.nih.gov/pubmed/30156629
http://dx.doi.org/10.1590/abd1806-4841.20187117
Descripción
Sumario:Bowen's disease is a type of squamous cell carcinoma in situ of the skin. The pigmented form is rare and represents less than 2% of cases. We report a case of a 74-year-old black man with a blackened and asymptomatic leg injury for about 6 months. Clinically, and under dermatoscopy, the injury was suggestive of melanoma or melanoacanthoma, and a definitive diagnosis was made by histopathological examination.

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