title: PlayStation purpura.
abstract: A 16-year-old boy presented with a number of asymptomatic pigmented macules on the volar aspect of his index fingers. Dermoscopy of each macule revealed a parallel ridge pattern of homogenous reddish-brown pigment. We propose that these lesions were induced by repetitive trauma from a Sony PlayStation 3 (Sony Corporation, Tokyo, Japan) vibration feedback controller. The lesions completely resolved following abstinence from gaming over a number of weeks. Although the parallel ridge pattern is typically the hallmark for early acral lentiginous melanoma, it may be observed in a limited number of benign entities, including subcorneal haematoma.
authors.affiliation: Department of Dermatology, The Alfred Hospital, Prahran, Victoria, Australia. drsjrobertson@gmail.com
authors.forename: Susan J
authors.initials: SJ
authors.lastname: Robertson
authors.forename: Jane
authors.initials: J
authors.lastname: Leonard
authors.forename: Alex J
authors.initials: AJ
authors.lastname: Chamberlain
mesh_terms: D000293:Adolescent; D046169:Dermoscopy; D005383:Finger Injuries / Q000175:diagnosis / Q000209:etiology*; D006406:Hematoma / Q000175:diagnosis / Q000209:etiology*; D006801:Humans; D008297:Male; D011693:Purpura / Q000175:diagnosis / Q000209:etiology*; D018910:Video Games / Q000009:adverse effects*