title: Collar osteophytes: a cause of false-positive findings in bone scans for hip fractures.
abstract: OBJECTIVE
  A retrospective review of our radiology database revealed five elderly patients, seen over a 12-month period, whose findings were judged positive for hip fractures on the basis of their bone scans, but whose MR imaging findings were negative.
  
  
  CONCLUSIONS
  The presence of collar osteophytes around the femoral neck caused a false diagnosis of hip fracture for these patients, as revealed on radionuclide bone scans. CT or MR imaging correlation is needed where collar osteophytes may have caused an incorrect diagnosis of hip fracture based on a bone scan.
authors.affiliation: Department of Radiology, University of Rochester School of Medicine and Dentistry, 601 Elmwood Ave., Box 648, Rochester, NY 14642, USA.
authors.forename: Francisco
authors.initials: F
authors.lastname: Garcia-Morales
authors.forename: Gwy Suk
authors.initials: GS
authors.lastname: Seo
authors.forename: Vaseem
authors.initials: V
authors.lastname: Chengazi
authors.forename: Johnny U V
authors.initials: JU
authors.lastname: Monu
mesh_terms: D000368:Aged; D005189:False Positive Reactions; D005260:Female; D005265:Femoral Neck Fractures / Q000175:diagnosis / Q000000981:diagnostic imaging*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D019275:Radiopharmaceuticals; D012680:Sensitivity and Specificity; D013669:Technetium Tc 99m Medronate; D015899:Tomography, Emission-Computed, Single-Photon; D014057:Tomography, X-Ray Computed
chemical_list: D019275:Radiopharmaceuticals; D013669:Technetium Tc 99m Medronate