Korean Journal of Dermatology  2011;49(1):79-81

Acantholytic Acanthoma with an Atypical Presentation.

Ji Hye YANG 1 ; Jeong Eun KIM ; Chong Hyun WON ; Sung Eun CHANG ; Mi Woo LEE ; Jee Ho CHOI ; Kee Chan MOON

Affiliations

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Keywords

Acantholytic acanthoma

Country

Republic of Korea

Language

Korean

Abstract

Acantholytic acanthoma is a rare benign neoplasm of epidermal keratinocytes and this commonly displays as a solitary, asymptomatic keratotic papule on the trunk. The histologic features are hyperkeratosis, acanthosis, papillomatosis and prominent acantholysis. Dyskeratotic cells are occasionally present, but prominent dyskeratosis is not a characteristic feature of acantholytic acanthoma. Herein, we report on a case of acantholytic acanthoma with several dyskeratoses, and this occurred in a 54-year-old woman who presented with a keratotic plaque that repeatedly pealed on the umbilicus.