Plantar Corn Caused by Epidermal Cyst.

Lee, Eun Sang; Burm, Jin Sik; Kim, Yang Woo

Case Report

Journal of the Korean Society of Plastic and Reconstructive Surgeons 2005;32(5):656-659.
Published online September 1, 2005.

Plantar Corn Caused by Epidermal Cyst.

Eun Sang Lee, Jin Sik Burm, Yang Woo Kim

Department of Plastic and Reconstructive Surgery, Mokdong Hospital, Ewha Womans University, Seoul, Korea. jsburm@ewha.ac.kr

Abstract

Plantar corn is a circumscribed and sharply demarcated hard mass of traumatic hyperkeratosis, which has a central core impacting the dermis deeply and causes pain while walking. The cause of the corn is the mechanical stress to the skin induced by several causative factors; extrinsic(tight shoes) or intrinsic(bony prominence), or combined(the claw toe). We found 7 cases of patients with a painful recurrent plantar corn which had an epidermal cyst under its lesion. These corns and cysts were excised totally and there was no recurrence in all cases during two to four months follow-up period. We think that an epidermal cyst may be another intrinsic factor for the development of a plantar corn. So, an epidermal cyst should be considered once in a recurrent plantar corn to be recalcitrant against popular treatments.

Keywords: Plantar corn; Epidermal cyst