Atypical Junctional Melanocytic Hyperplasia with Intradermal Nevus.
- Author:
Su Young JEON
1
;
Seung Min HA
;
Dong Yeob KO
;
Ki Hoon SONG
;
Ki Ho KIM
Author Information
1. Department of Dermatology, College of Medicine, Dong-A University, Busan, Korea. khkim@dau.ac.kr
- Publication Type:Case Report
- Keywords:
Atypical junctional melanocytic hyperplasia;
Intradermal nevus;
Melanoma in situ
- MeSH:
Hyperplasia;
Melanins;
Melanoma;
Nevus, Intradermal
- From:Korean Journal of Dermatology
2012;50(12):1077-1080
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Atypical junctional melanocytic hyperplasia is a rare condition with unknown etiology. It is characterized by focal atypical melanocytic proliferation limited in the basal layer. Although this lesion is difficult to separate from melanoma in situ (MIS), it could be distinguished from MIS by the lack of several features, including lateral spread, upward epidermal migration, marked cytologic atypia, finely granular "smoky" melanin pigment, mitotic figures, and a subjacent host inflammatory response. In one study, atypical junctional melanocytic hyperplasia was found in 6.2% (25/400) of otherwise normal intradermal nevi. However, to our knowledge, no case of atypical junctional melanocytic hyperplasia with intradermal nevus has ever been published in Korean dermatologic literatures. Herein, we report a rare and interesting case of atypical junctional melanocytic hyperplasia with intradermal nevus.
