title: [A woman with red discolouration of the lower leg].
abstract: A 22-year-old women visited the Emergency Department with purpura of the right lower extremity subsequent to four days of hiking 40 kilometres daily. The diagnosis 'exercise-induced vasculitis' was made. This is a harmless and self-limiting disease that can occur due to exercising in warm weather.
authors.affiliation: Kennemer Gasthuis, afd. Interne Geneeskunde, Haarlem.
authors.forename: Floor J A
authors.initials: FJ
authors.lastname: van Deudekom
authors.forename: Marloes D
authors.initials: MD
authors.lastname: Stradmeijer
authors.forename: Philomeen  M M
authors.initials: P
authors.lastname: Kuijer
mesh_terms: D015444:Exercise; D005260:Female; D006801:Humans; D007866:Leg / Q000473:pathology; D011693:Purpura / Q000175:diagnosis* / Q000209:etiology; D014657:Vasculitis / Q000175:diagnosis* / Q000209:etiology; D055815:Young Adult