Acquired patch-type blue nevus with overlying vitiligo: a case report.
Int J Dermatol
; 51(5): 568-70, 2012 May.
Article
en En
| MEDLINE
| ID: mdl-22515581
ABSTRACT
BACKGROUND:
Blue nevi are a group of congenital and acquired dermal melanocytoses characterized by a blue-gray appearance on the skin. The common blue nevus and cellular blue nevus are the most common subtypes. Patch-type blue nevus is rather rare. OBSERVATIONS We describe a 77-year-old Chinese male with a 6 × 8-cm non-palpable blue patch overlaid by a depigmented patch on the back of the left scalp. Histological examination of the blue-gray patch showed numerous spindled and elongated bipolar dendritic melanocytes in the upper reticular dermis and an absence of epidermal melanocytes. Immunohistochemically, these dendritic melanocytes were positive for S-100 and HMB-45. A diagnosis of a patch-type blue nevus with overlying vitiligo was made after the biopsy.CONCLUSIONS:
The patient presents an unusual manifestation of patch-type blue nevi with overlying vitiligo. To the best of our knowledge, these features have not been previously described.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Cuero Cabelludo
/
Neoplasias Cutáneas
/
Vitíligo
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Nevo Azul
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Neoplasias de Cabeza y Cuello
Límite:
Aged
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Humans
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Male
Idioma:
En
Revista:
Int J Dermatol
Año:
2012
Tipo del documento:
Article
País de afiliación:
China