A Case of Melanoacanthoma on the External Auditory Canal / 대한피부과학회지
Korean Journal of Dermatology
;
: 369-372, 2007.
Article
Dans Coréen
| WPRIM
| ID: wpr-72442
ABSTRACT
Melanoacanthoma, a rare benign variant of seborrheic keratosis, was first introduced by Mishima and Pinkus in 1960. It is a slow-growing, painless, pigmented plaque with a verrucous surface and a diameter ranging from a few millimeters to 10 cm. It tends to develop during middle-age with an equal sex incidence, and the lesion usually presents on the head, trunk, and especially the lip. It also has a histopathologic finding of mixed neoplasm composed of melanocytes scattered throughout keratinocytic lobules, and is characterized by hyperkeratosis, parakeratosis, acanthosis, papillomatosis and pseudo-horn cysts in the epidermis. We report a case of melanoacanthoma occurring in a 52-year-old female, who presented with an easily bleeding mass on her right external auditory canal, an extremely uncommon site.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Papillome
/
Parakératose
/
Incidence
/
Kératose séborrhéique
/
Conduit auditif externe
/
Épiderme
/
Tête
/
Hémorragie
/
Lèvre
/
Mélanocytes
Type d'étude:
Etude d'incidence
/
Étude pronostique
Limites du sujet:
Femelle
/
Humains
langue:
Coréen
Texte intégral:
Korean Journal of Dermatology
Année:
2007
Type:
Article
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