title: A child with a bluish-purple discoloration on the chin.
authors.affiliation: Department of Paediatrics, Medical Centre Leeuwarden, The Netherlands. wieteke.ploegstra@znb.nl
authors.forename: Wieteke M
authors.initials: WM
authors.lastname: Ploegstra
authors.forename: Jacqueline
authors.initials: J
authors.lastname: Schuur
authors.forename: Tina E
authors.initials: TE
authors.lastname: Faber
mesh_terms: D002648:Child; D002680:Chin / Q000293:injuries*; D003288:Contusions / Q000175:diagnosis / Q000209:etiology; D003937:Diagnosis, Differential; D006406:Hematoma / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D008297:Male; D014618:Vacuum