title: Water-slide alopecia.
abstract: A 29-year-old male presented with large, symmetric, alopecic patches on the posterolateral aspects of both calves. A detailed history revealed that the individual had recently attended a water-slide amusement park. Repeated frictional trauma between the legs and the slide resulted in these alopecic patches. Friction, especially when encountered during sports-related and recreational activities, should be included in the differential diagnosis of well-defined alopecic patches.
authors.affiliation: Department of Dermatology, University of Cincinnati, College of Medicine, PO Box 670592, Cincinnati, OH 45267-0592, USA.
authors.forename: B B
authors.initials: BB
authors.lastname: Adams
mesh_terms: D000328:Adult; D000505:Alopecia / Q000209:etiology*; D006801:Humans; D007866:Leg; D008297:Male; D011998:Recreation