title: MR signal characteristics of cadaveric bone allografts in three children with primary bone tumors treated with limb salvage therapy.
abstract: Three children with adult cadaveric bone allografts for the treatment of bone malignancies are presented. Follow-up magnetic resonance (MR) imaging demonstrated decreased signal on T1-weighted imaging and increased signal on T2-weighted imaging in the allograft without clinical evidence of recurrent disease. These signal characteristics appear to be a normal finding in cadaveric bone allografts and should not be mistaken for recurrence. The finding may reflect persistent marrow necrosis within the allograft marrow cavity.
authors.affiliation: Babies Hospital, Department of Radiology, Columbia-Presbyterian Medical Center, New York, NY 10032.
authors.forename: T L
authors.initials: TL
authors.lastname: Levin
authors.forename: T T
authors.initials: TT
authors.lastname: Miller
authors.forename: D M
authors.initials: DM
authors.lastname: Panicek
authors.forename: N
authors.initials: N
authors.lastname: Rosenfield
authors.forename: C
authors.initials: C
authors.lastname: Ruzal-Shapiro
authors.forename: H S
authors.initials: HS
authors.lastname: Dick
authors.forename: W E
authors.initials: WE
authors.lastname: Berdon
mesh_terms: D000293:Adolescent; D001859:Bone Neoplasms / Q000175:diagnosis / Q000601:surgery*; D016025:Bone Transplantation / Q000473:pathology*; D002102:Cadaver; D002648:Child; D005260:Female; D005266:Femoral Neoplasms / Q000175:diagnosis / Q000601:surgery*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D012516:Osteosarcoma / Q000175:diagnosis / Q000601:surgery*; D016879:Salvage Therapy; D012512:Sarcoma, Ewing / Q000175:diagnosis / Q000601:surgery*; D013977:Tibia