title: [Epidemiology of bone and soft-part tumors of the foot and knee].
abstract: METHODS
  Report of cases.
  
  
  OBJECTIVE
  Review of the cases in a period of 10 years with bone and soft tumors in foot and ankle, to knowing epidemilogical, clinic and patologic anatomy parameters to describe the behavior.
  
  
  METHODS
  Review of 166 cases from 1991 to 2000 and been analyze with descriptive statistic, association measurment for inside stratum, with odds ratio, hipótesis test with chi square for qualitative date and t to Student for quantitative date.
  
  
  RESULTS
  166 patients within 2 years to 78 years old, 81 with bone tumors and 79 with soft tumors, mostly benign, the most frequent was in the soft tissue ganglion and oseal benign exostosis in bone, 6 different malignant tumors, the principal affected zone were the toes, as a difference to literature, the most affected age group was 10 to 20 years followed to the 30 to 40 years old, we report 42 different patological diagnostics results to soft tissue and osseous tissue.
  
  
  CONCLUSIONS
  clinical features is not a useful parameter to differentiate between malign or benign tumors and does not allow to establish the biological behavior, we propose the diagnostic algorithm that includes the intentional clinical probe, comparative X-ray in three projections with soft technique, in suspicion to malignant lesion may require CT scan, MRI, osseous scan and finally biopsy which will improve the final outcome.
authors.affiliation: Servicio de Tumores Oseos, Instituto Nacional de Rehabilitación. drdelgado@hotmail.com
authors.forename: Ernesto Andrés
authors.initials: EA
authors.lastname: Delgado Cedillo
authors.forename: Genaro
authors.initials: G
authors.lastname: Rico Martínez
authors.forename: Luis Miguel
authors.initials: LM
authors.lastname: Linares González
authors.forename: Eréndira
authors.initials: E
authors.lastname: Estrada Villaseñor
authors.forename: Saúl Renán
authors.initials: SR
authors.lastname: León Hernández
authors.forename: Raul
authors.initials: R
authors.lastname: Ble Campos
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D001845:Bone Cysts / Q000175:diagnosis / Q000453:epidemiology; D001859:Bone Neoplasms / Q000175:diagnosis / Q000453:epidemiology*; D002648:Child; D002675:Child, Preschool; D005096:Exostoses / Q000175:diagnosis / Q000453:epidemiology; D005260:Female; D005534:Foot Diseases / Q000175:diagnosis / Q000453:epidemiology*; D045888:Ganglion Cysts / Q000175:diagnosis / Q000453:epidemiology; D006801:Humans; D007717:Knee; D008297:Male; D008800:Mexico / Q000453:epidemiology; D008875:Middle Aged; D015831:Osteochondroma / Q000175:diagnosis / Q000453:epidemiology; D012189:Retrospective Studies; D012983:Soft Tissue Neoplasms / Q000175:diagnosis / Q000453:epidemiology*