title: Acral melanoma with hyperkeratosis mimicking a pigmented wart.
abstract: Acral lentiginous melanoma (ALM) of the sole sometimes has a hyperkeratotic appearance and mimics a pigmented wart. We report a case of an 81-year-old woman with an ALM on the left sole with hyperkeratosis. Due to its presentation it was difficult to make a correct diagnosis at the beginning. Finally we noticed several small, pigmented macules around the wart-like lesion with the parallel ridge pattern on dermoscopy, strongly suggesting acral melanoma. When a hyperkeratotic pigmented lesion on the sole is encountered, one should rule out melanoma by careful examination of the periphery of the lesion. Dermoscopy is a helpful adjunct for the diagnosis of an unusual case like this.
authors.affiliation: Division of Dermatology, Hiratsuka City Hospital, Kanagawa, Japan.
authors.forename: Misaki
authors.initials: M
authors.lastname: Ise
authors.forename: Fumiyo
authors.initials: F
authors.lastname: Yasuda
authors.forename: Izumi
authors.initials: I
authors.lastname: Konohana
authors.forename: Keiko
authors.initials: K
authors.lastname: Miura
authors.forename: Masaru
authors.initials: M
authors.lastname: Tanaka
keywords: acral; hyperkeratosis; melanoma; wart