Resumen

MASQUIJO, Julio Javier; SARTORI, Federico  y  INNOCENTI, Sergio. Fibrocartilaginous mesenchymoma of the proximal humerus: case report. Arch. argent. pediatr. [online]. 2014, vol.112, n.5, pp.e222-e226. ISSN 0325-0075.  http://dx.doi.org/10.5546/aap.2014.e222.

Fibrocartilaginous mesenchymoma (FCM) is a rare tumor that primarily affects the long bones. Few cases have been reported since its description. A case of a 4-year-old boy with FCM located in the humerus is presented. Radiological examination showed an expansive lytic lesion located in the metaphyseal proximal humerus. Magnetic resonance imaging showed soft tissue expansion. Histopathological diagnosis was confirmatory of FCM. Curettage, adjuvant phenolization, and bone grafting with bone substitute, and autologous bone marrow was performed. During a follow-up period of 2 years, there was no evidence of disease progression. FCM should be considered in the differential diagnosis of lytic bone lesions in children and adolescents.

Palabras clave : Fibrocartilaginous mesenchymoma; Fibrocartilaginous dysplasia; Tumor; Children.

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