This is a case report of a primary dermal melanoma and its dermatoscopic findings. A 50-year-old man in 2002 presented on the right anterior aspect of the thorax a 1.5-cm-diameter lesion with a rough surface and multiple papules of "vascular-like" appearance. It lacked the usual dermatoscopic findings, such as atypical pigmented network and radial streaks, related to the infiltration of malignant melanoma cells into the epidermis. Papillomatous projections with light brown and dark brown blotchy areas were seen under dermatoscopy, due to dermal melanin reflection from macrophages and neoplastic melanocytic cells near the junctional area. Other areas of papillomatous projections had a light brown-pink color surrounded by a thin whitish septum caused by the reflection of dermal vessels.
Introducción: La enfermedad de Hailey-Hailey (pénfigo crónico familiar benigno) es una dermatosis ampollar, de evolución crónica, recidivante, autosómica dominante, de penetrancia y expresividad variables, localizada predominantemente en los pliegues.Métodos: Se realizó una revisión de la base de datos del Servicio Anatomía Patológica del Hospital Clínico Universidad de Chile (HCUCH) entre los años 2001 y 2016 y se complementaron con los antecedentes clínicos extraídos de las fichas clínicas.Resultados: Se obtuvo un total de 6 casos ilustrativos de la patología en estudio.Discusión y conclusiones: La enfermedad de Hailey-Hailey es una genodermatosis poco frecuente cuyo diagnóstico y tratamiento constituyen un desafío para el dermatólogo.
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