Ann Dermatol.
2007 Sep;19(3):119-121. 10.5021/ad.2007.19.3.119.
A Case of Melanoacanthoma
- Affiliations
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- 1Department of Dermatology, School of Medicine, Gyeongsang National University, Jinju, Korea.
- 2Gyeongsang Institute of Health Science, Jinju, Korea. yoontj@gnu.ac.kr
- KMID: 1520577
- DOI: http://doi.org/10.5021/ad.2007.19.3.119
Abstract
- Melanoacanthoma is a variant of seborrheic keratosis which was first introduced by Mishima and Pinkus in 1960. This is a very rare and benign, epidermal tumor. Clinically, it is usually manifested in a pigmented, verrucous, round or oval plaque and nodular lesion. This is characterized histologically by nonpigmented keratinocytes and numerous large, richly dendritic melanocytes. We describe a 68-year-old man who suffered from a black-colored plaque on his right shin for 5 years. Melanoacanthoma was diagnosed by characteristic histopathologic findings.
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