A Case of Focal Acral Hyperkeratosis

Hong Yong Kim, Ki Bum Myung, Hong Il Kook

Corresponding author: Hong Il Kook. Department of Dermatology, College of Medicine, Ewha Womans University, Korea.

Copyright ⓒ 1989. Ewha Womans University School of Medicine. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Published Online: Jul 24, 2015

Abstract

Focal acral hyperkeratosis is clinically identical to acrokeratoelastoidosis but histologically lacks the elastorrhexis which is a feature of acrokeratoelastoidosis. We present a case of focal acral hyperkeratosis in a 50 year old woman. About 20 years ago, a few pinhead sized papules developed on radial side of index fingers. Thereafter size and number of papules have been gradually increased to cover entire hands sparing palms and dorsa of feet. The histopathologic study showed characteristic findings of focal acral hyperkeratosis. After treatment with etretinate, the size and thickness of lesions were reduced.