Resumo

NUNES, Rui; COSTA, Jorge  e  MARTINS, Manuela. Osteomielite xantogranulomatosa do úmero. Rev. Port. Ortop. Traum. [online]. 2012, vol.20, n.4, pp.459-464. ISSN 1646-2122.

The authors present a case of an osteolytic lesion of the distal metaphysis of the humerus in wich the histopathological examination established the diagnosis of xanthogranulomatous osteomyelitis. This uncommon nosological entity, wich can mimic bone tumor, is a form of chronic osteomyelitis histologically characterized by the accumulation of foamy histiocytes and inflammatory cells. The authors describe the histopathology of this type of osteomyelitis and discuss its differential diagnosis.

Palavras-chave : Xanthogranulomatous osteomyelitis; foam cells; histiocytes.

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