title: Maple tree knee: a unique foreign body--value of ultrasound and CT examination.
abstract: This report describes an intraosseous maple branch fragment which presented on initial radiographs as a benign appearing lytic bone lesion. Sonography and CT confirmed the presence of intraosseous and intra-articular foreign body and chronic foreign body reaction.
authors.affiliation: Departments of Radiology and Orthopedics, British Columbia's Children's Hospital, Vancouver, Canada.
authors.forename: H
authors.initials: H
authors.lastname: Bray
authors.forename: D A
authors.initials: DA
authors.lastname: Stringer
authors.forename: K
authors.initials: K
authors.lastname: Poskitt
authors.forename: D E
authors.initials: DE
authors.lastname: Newman
authors.forename: W G
authors.initials: WG
authors.lastname: MacKenzie
mesh_terms: D000293:Adolescent; D005260:Female; D005269:Femur / Q000000981:diagnostic imaging*; D005547:Foreign Bodies / Q000000981:diagnostic imaging*; D005549:Foreign-Body Reaction / Q000000981:diagnostic imaging; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography; D014934:Wood