title: [Diagnosis of bone lesions using image guided percutaneous biopsy].
abstract: BACKGROUND
  Percutaneous biopsies have a good sensitivity and specificity for the diagnosis of bone lesions.
  
  
  OBJECTIVE
  To report the experience with 270 percutaneous bone lesions biopsies guided with fluoroscopy or computed tomography.
  
  
  METHODS
  Retrospective review of the medical records of 270 patients (mean age 53.4 years, range 4 to 95 years; 134 female) subjected to a percutaneous biopsy of a bone lesion, guided either by computed tomography or fluoroscopy. The final analysis included the tumor type, tumor malignancy, tumor grade and complications of the procedure.
  
  
  RESULTS
  One hundred seventy nine lesions were malignant and 91 benign. Of the malignant lesions, 95 were metastatic and 84 were primary. In 3 cases, the initial diagnosis was a false negative (1.1%). Only one patient had a local hematoma after the procedure.
  
  
  CONCLUSIONS
  Image guided percutaneous biopsy of bone lesions is a safe, effective, fast and economic procedure to obtain a pathological diagnosis of bone lesions.
authors.affiliation: Sección Radiología Musculoesquelética, Departamento de Radiología, Hospital Clínico, Pontificia Universidad Católica de Chile.
authors.forename: Oscar
authors.initials: O
authors.lastname: Contreras
authors.forename: Alvaro
authors.initials: A
authors.lastname: Burdiles
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001707:Biopsy, Needle / Q000379:methods*; D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000556:secondary; D001842:Bone and Bones / Q000000981:diagnostic imaging / Q000473:pathology*; D002648:Child; D002675:Child, Preschool; D005188:False Negative Reactions; D005260:Female; D005471:Fluoroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D016609:Neoplasms, Second Primary / Q000000981:diagnostic imaging / Q000473:pathology; D015641:Radiography, Interventional; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D013124:Spinal Injuries / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed