title: Ten-year-old boy with a swollen knee: unusual cause of knee pain.
authors.affiliation: Department of Emergency Medicine, Flushing Hospital Medical Center, Flushing, New York 11355, USA.
authors.forename: Christopher C
authors.initials: CC
authors.lastname: Lee
authors.forename: Uri
authors.initials: U
authors.lastname: Vainchenker
authors.forename: Robert S
authors.initials: RS
authors.lastname: Crupi
mesh_terms: D002648:Child; D005547:Foreign Bodies / Q000150:complications / Q000000981:diagnostic imaging*; D006801:Humans; D007717:Knee; D007719:Knee Joint / Q000000981:diagnostic imaging*; D008297:Male; D010146:Pain / Q000209:etiology*; D011859:Radiography