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Journal of Oncology
Volume 2012 (2012), Article ID 437958, 6 pages
http://dx.doi.org/10.1155/2012/437958
Clinical Study

Enchondroma versus Low-Grade Chondrosarcoma in Appendicular Skeleton: Clinical and Radiological Criteria

1Unidad de Tumores Musculoesqueléticos, Servicio de Cirugía Ortopédica y Traumatología, Hospital Universitario La Paz, Paseo de la Castellana 261, 28046 Madrid, Spain
2Departamento de Bioestadística, Hospital Universitario La Paz, Paseo de la Castellana 261, 28046 Madrid, Spain

Received 3 October 2011; Revised 1 February 2012; Accepted 6 February 2012

Academic Editor: Peter E. Schwartz

Copyright © 2012 Eugenio M. Ferrer-Santacreu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objectives. To determine the validity of clinical and radiological features of enchondroma and low grade chondrosarcoma, and contrast the biopsy results with the clinical diagnosis based on the history and imaging. Material and Method. The study included 96 patients with cartilage type lesions suggestive of an enchondroma (E) or an low grade chondrosarcoma (LGC) according to the clinical and imaging data. The hypotheses were contrasted with the biopsy. Results. Of the 82 patients studied completely, 56 were considered E (68.29%), 8 as LGC (8.33%) and in 18 (18.75%) were doubtful cases and considered as suspected LGC. Of these, the biopsy showed 4 E (25%), 10 LGC (50%) and 4 were not definitive. On the other hand, of the 56 cases diagnosed as E, 15 were biopsied, 5 of these biopsies turned out to be LGC (33.3%). The 8 cases diagnosed as LGC, were also biopsied and only 4 biopsies (50%) confirmed the initial diagnosis. Features analyzed in the study showed no statistically significant difference. Correlation analysis between the diagnosis issued initially and the biopsy result gave a value of 0.69 (kappa coefficient), which was considered a good correlation. Conclusion. Features analyzed did not have any statistical significance. However, there was a good correlation between initial diagnosis and biopsy's result.