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Rev. chil. radiol ; 14(2): 62-67, 2008. ilus, tab
Article in Spanish | LILACS | ID: lil-517430

ABSTRACT

Background. Giant cell tumor (GCT) is an uncommon primary bone neoplasm in pediatric patients. Plain radiograph of the affected area is the first diagnostic approach in most cases. Objective. To show radiographic features that could allow the radiologist to suspect the diagnosis of GCT through plain radiological study. Methods. Records from the National Bone Tumor File between 1959 and 1999 were retrospectively analyzed. Twenty-nine cases of patients under 20 years with biopsy proven diagnosis of GCT were found. The radiological study was available in 14 cases. Results. From a total of 29 patients, 83 percent were females and 17 percent males. Age ranged from 7 to 19 years, with an average of 16.3 years. In cases with radiological study, 93 percent of them presented epiphyseal involvement of long bones. Osteolytic lesions with metaphyseal extension were the most frequent radiological pattern. One case showed malignancy with metastases. Conclusions. GCT is regarded as an infrequent occurrence in pediatric patients and its diagnosis can be suspected based on plain radiographic findings.


El tumor de células gigantes es un tumor óseo primario, poco frecuente en población pediátrica. En la mayoría de los casos, la radiografía simple es la primera aproximación diagnóstica, por lo que nuestro objetivo es mostrar las características radiológicas que permiten sospechar el diagnóstico del tumor de células gigantes en el estudio radiológico simple. Se analizó retrospectivamente los datos del Registro Nacional de Tumores Óseos, entre los años 1959 y 1999, encontrando 29 casos de tumor de células gigantes histológicamente confirmados en menores de 20 años; en 14 se dispuso de estudio radiológico. El 83 por ciento (24/29) correspondió a mujeres y 17 por ciento (5/29) a hombres, con edades entre 7 y 19 años (promedio = 16.3 años). Radiológicamente, el 93 por ciento mostró compromiso epifisiario de huesos largos y el patrón más frecuente fue osteolítico con extensión metafisiaria.


Subject(s)
Humans , Male , Adolescent , Female , Child , Bone Neoplasms , Giant Cell Tumor of Bone , Bone Neoplasms/pathology , Retrospective Studies , Giant Cell Tumor of Bone/pathology
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